US2951824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for curing polyepoxides and resulting products
Assignee: Shell USA Inc
•
Filing: 1957-04-05
•
Granted: 1960-09-06
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 Bruin Pieter
- 👤 Sinnema Feije Hotze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:48
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS FOR RESINIFYING AND CURING A POLYEPOXIDE HAVING A
Claim 2
Dependent Claim
10 words
A PROCESS FOR RESINIFYING AND CURING A POLYEPOXIDE HAVING A
References Cited (Backward Citations)
US2528932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |