yes
USPTO
English: United States Patent and Trademark Office, abbreviation: USPTO
Website: www.uspto.gov
US invention patent search: Patent Public Search | USPTO
20 years
no
1-1.5 years
2-3 years
yes
- Grant fee: The applicant shall pay the granted registration fee within 3 months after receiving the notification of granted decision.
- Annuity: Three annual fees shall be paid in the 3.5th year, 7.5 years and 11.5 years from the date of granted, and the payment may be postponed within 6 months after the overdue period, but 25% of the annual fee of the current year shall be paid at the same time as a penalty.
- via Paris Convention : 12 months from earliest priority date.
- via Nationalization of PCT : 30 months from the earliest priority date.
15 years
no