US3509239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric compositions based on rubber and copolymers of piperylene with 2-methyl-2-butene
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1967-02-27
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Granted: 1970-04-28
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Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 Gerald W Tindall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:55
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08L21/00; C08L23/18; C08L23/20; C08L23/22; C09; C09J; C09J121/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2497458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |