US3456037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane-polyureas
Assignee: Bayer Corp
•
Filing: 1964-12-14
•
Granted: 1969-07-15
•
Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Guenther Kurt Hoeschele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/75; C08G18/758; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/64; C08G18/6415; C08L; C08L75/00; Y; Y10; Y10S; Y10S273/00; Y10S273/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2888439A
Cited
US3036996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |