Patent US1845008A successfully refreshed from Google Patents.
Patent US3446756A successfully refreshed from Google Patents.
US3446756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making resinous epoxy prepolymers and curing of same
Assignee: Individual
•
Filing: 1965-12-06
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Granted: 1969-05-27
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas Ramos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:10
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/32; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |