Patent US3491935A successfully refreshed from Google Patents.
US3491935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a peelable seal
Assignee: Phillips Petroleum Co
•
Filing: 1966-08-08
•
Granted: 1970-01-27
•
Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Claude H Trotter Jr
- 👤 Stephen A Kile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2066; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB980130A
Cited
US2488212A
Cited
US3294621A
Cited
US2956723A
Cited
US2970414A
Cited
US3192091A
Cited
US3272674A
Cited
US3217871A
Cited
US3379595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |