US3404102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycyclic epoxide compositions and presins produced therefrom
Assignee: Union Carbide Corp
•
Filing: 1964-04-09
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Granted: 1968-10-01
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Expires: 1984-04-09
Abstract
No abstract record available.
Inventors
- 👤 Paul S Starcher
- 👤 Samuel W Tinsley
- 👤 Bertrand D Ash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:17
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08G59/22; C08G59/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2886472A
Cited
FR1309511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |