Patent US3711445A successfully refreshed from Google Patents.
US3711445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-priming polyurethane compositions
Assignee: EIDP Inc
•
Filing: 1970-10-08
•
Granted: 1973-01-16
•
Expires: 1990-10-08
Abstract
Abstract SELF-PRIMING POLYURETHANE SEALANTS AND A PROCESS FOR PREPARING THEM BY INCORPORATING A FUNCTIONAL AMINE ALKOXYSILANE INTO THE PREPOLYMERIZATION OF THE ISOCYANATE BACKBONE OF THE POLYMERIC COMPOSITION.
Inventors
- 👤 E Chu
- 👤 L Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:03
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/28; C08G18/30; C08G18/38; C08G18/3893; C08G18/65; C08G18/66; C08G18/77; Y; Y10; Y10S; Y10S528/00; Y10S528/905
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |