Time Limits for Entering National/Regional Phase under PCT Chapters I and II

(in months from priority date)
(status on 2 January 2020)

Note that detailed information on the excusing of delays in meeting time limits before certain designated/elected Offices is contained in the corresponding National Chapters of the PCT Applicant’s Guide.

Designated/Elected Office Chapter I
(under PCT Article 22)
Chapter II
(under PCT Article 39(1))
AE United Arab Emirates 30 30
AG Antigua and Barbuda 30 30
AL Albania1 31 31
AM Armenia2 31 31
AO Angola3 30 30
AP African Regional Intellectual Property Organization4 31 31
AT Austria1 30 30
AU Australia 31 31
AZ Azerbaijan2 30 31
BA Bosnia and Herzegovina 34 34
BB Barbados 30 30
BG Bulgaria1 31 31
BH Bahrain 30 30
BN Brunei Darussalam 30 30
BR Brazil 30 30
BW Botswana6 31 31
BY Belarus2 31 31
BZ Belize  30   307
CA Canada  3015 3015
CH Switzerland1, 9 30 30
CL Chile   30   30 
CN China           30 (32)8          30 (32)8
CO Colombia  31 31
CR Costa Rica  31 31
CU Cuba  30 30
CZ Czechia1 31 31
DE Germany1 30 30
DJ Djibouti 30 30
DK Denmark1  31  31
DM Dominica3 30 30
DO Dominican Republic  30 30
DZ Algeria  31 31
EA Eurasian Patent Organization  31 31
EC Ecuador  31 31
EE Estonia1  31 31
EG Egypt  30 30
EP European Patent Organisation10 31 31
ES Spain1  30 30
FI Finland1  31 31
GB United Kingdom1  31 31
GD Grenada3  30 30
GE Georgia  31 31
GH Ghana6  30 30
GM Gambia6  30 31
GT Guatemala  30 30
HN Honduras 30 30
HR Croatia1   31 31
HU Hungary1  31 31
ID Indonesia     315    315
IL Israel  30 30
IN India  31 31
IR Iran (Islamic Republic of) 30 30
IS Iceland1  31 31
JO Jordan 30 30
JP Japan  30 30
KE Kenya6  30 30
KG Kyrgyzstan2  31 31
KH Cambodia 30 30
KN Saint Kitts and Nevis 30 30
KP Democratic People’s Republic of Korea  30 30
KR Republic of Korea  31 31
KW Kuwait 30 30
KZ Kazakhstan2  31 31
LA Lao People’s Democratic Republic3  30 30
LC Saint Lucia3  30 30
LK Sri Lanka  30 30
LR Liberia6  30 31
LS Lesotho6  30 31
LU Luxembourg1      2011 30
LY Libya3  30 30
MA Morocco  31 31
MD Republic of Moldova 31 31
ME Montenegro3  30 30
MG Madagascar  30 30
MK North Macedonia1  31 31
MN Mongolia  31 31
MW Malawi6  30 30
MX Mexico  30 30
MY Malaysia  30 30
MZ Mozambique6  31 31
NA Namibia6  31 31
NG Nigeria  30 30
NI Nicaragua  30 30
NO Norway1  31 31
NZ New Zealand  31 31
OA African Intellectual Property Organization12 30 30
OM Oman  30 30
PA Panama 30 30
PE Peru   30  30 
PG Papua New Guinea  31 31
PH Philippines            30 (318)           30 (318)
PL Poland1  30 30
PT Portugal1  30 30
QA Qatar 30 30
RO Romania1 30 30
RS Serbia1      3013 3013
RU Russian Federation2  31 31
RW Rwanda3, 6 30 30
SA Saudi Arabia 30 30
SC Seychelles  31 31
SD Sudan6  30 30
SE Sweden1  31 31
SG Singapore  3014 3014
SK Slovakia1  31 31
SL Sierra Leone6  31 31
ST Sao Tome and Principe3, 6 30 30
SV El Salvador  30 30
SY Syrian Arab Republic  31 31
TH Thailand  30 30
TJ Tajikistan2  30 31
TM Turkmenistan2  30 31
TN Tunisia3  30 30
TR Turkey1           30 (338)          30 (338)
TT Trinidad and Tobago   30 31
TZ United Republic of Tanzania6      2111 31
UA Ukraine  31 31
UG Uganda6 30 31
US United States of America  30 30
UZ Uzbekistan  31 31
VC Saint Vincent and the Grenadines 31 31
VN Viet Nam    31 31
WS
Samoa 303 303
ZA South Africa  31 31
ZM Zambia6  30 30
ZW Zimbabwe6  30 31
  1. If designated/elected for a European patent, see EP as DO/EO for the applicable time limits.
  2. If designated/elected for a Eurasian patent, see EA as designated/elected Office (DO/EO) for the applicable time limits.
  3. In the absence of information from the Office concerned, the time limits shown are those which would normally apply under PCT Articles 22(1) and 39(1)(a).  If the Office decides to apply longer time limits, that information will be published in the PCT Newsletter.
  4. This Office acts as DO/EO for the following State which does not act in the capacity of DO/EO:  SZ.
  5. This time limit may be extended provided that the applicant pays an additional fee for late entry into the national phase (see national phase for details).
  6. If designated/elected for an ARIPO patent, see AP as DO/EO for the applicable time limits.
  7. May be extended upon written request of the applicant. 
  8. Time limit applicable if applicant pays an additional fee for late entry into the national phase (see national phase for details: CA, CN, PH, TR).
  9. This Office acts as DO/EO for the following State which does not act in the capacity of DO/EO:  LI.
  10. This Office acts as DO/EO for the following States which do not act in the capacity of DO/EO:  BE, CY, FR, GR, IE, IT, LT, LV, MC, MT, NL, SI, SM.
  11. This Office has notified the International Bureau of the non-applicability of the 30-month time limit under PCT Article 22(1), as modified with effect from 1 April 2002 – it does not yet apply the 30-month time limit for entering the national phase.
  12. This Office acts as DO/EO for the following States which do not act in the capacity of DO/EO:  BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG.
  13. The time limit may be extended by 30 days if the applicant pays an additional fee for late entry into the national phase.
  14. The time limit may be extended by up to 18 months provided the applicant pays the prescribed fee (see national phase for details).
  15. Up to 12 months after the 30-month deadline (30 months from the priority date) the applicant can request reinstatement of rights provided that he/she pays the fee for reinstatement of rights and meets the other requirements outlined in subsection 154(3) of the Canadian Patent Rules for the reinstatement of rights (late entry into the national phase).