Patent US3678010A successfully refreshed from Google Patents.
US3678010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanized silicon terminated polymers
Assignee: Union Carbide Corp
•
Filing: 1969-12-22
•
Granted: 1972-07-18
•
Expires: 1989-12-22
Abstract
Abstract A SILICON TERMINATED ORGANIC POLYMER COMPRISING A CARBONYL CHLORIDE TERMINATED POLYESTER PREPOLYMER WHEREIN THE CARBONYL CHLORIDE TERMINAL GROUPS HAVE BEEN REACTED WITH AN ORGANOSILICON COMPOUND TO TERMINATE, THAT IS CAP OF ENDBLOCK SAID POLYMERS WITH ORGANOSILICON GROUPS.
Inventors
- 👤 George L Brode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:32
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C08G63/68; C08G63/695
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |