US3420915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenol modified hydrocarbon resins and blends thereof with epoxy resin,polyurethane or polythiol
Assignee: Cal-Colonial Chemsolve
•
Filing: 1966-11-17
•
Granted: 1969-01-07
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Expires: 1986-11-17
Abstract
No abstract record available.
Inventors
- 👤 Charles Henry Braithwaite Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:18
CPC Classifications
C; C08; C08L; C08L65/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4081; C08G18/62; C08G18/6204; C08G18/64; C08G18/67; C08G18/69; C08G61/00; C08G61/02; C08G8/00; C08G8/28; C08G8/30; C08L63/00; C08G2261/00; C08G2261/30; C08G2261/34; C08G2261/342; C08L61/00; C08L61/04; C08L61/06; C08L75/00; C08L75/04; C08L81/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2798867A
Cited
US2824860A
Cited
US3032533A
Cited
US3110699A
Cited
US3069373A
Cited
US3177166A
Cited
US3258450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |