US3361844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane/polyurea product and process for preparing same
Assignee: UNIROYAL
•
Filing: 1964-12-14
•
Granted: 1968-01-02
•
Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Hoeschele Guenther Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:41
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/75; C08G18/758; C08G18/08; C08G18/10; C08L; C08L75/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA573724A
Cited
US2888439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |