US3732338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of ethylene-propylene rubbers and polypentenamers
Assignee: Bayer AG
•
Filing: 1971-12-20
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Granted: 1973-05-08
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Expires: 1991-12-20
Abstract
Abstract RUBBER MIXTURES OF (A) 5-95% BY WEIGHT OF ETHYLENE-PROPYLENE RUBBER AND (B) 95-5% BY WEIGHT OF POLYPENTENAMER.
Inventors
- 👤 D Theisen
- 👤 F Haas
- 👤 M Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:29
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/10; C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; B32B25/14; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/16; C08K5/17; C08L23/18; C08L23/20; C08L65/00; C08L91/00; B32B2597/00; B32B2605/00; B32B2605/08; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
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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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |