Patent US3630974A successfully refreshed from Google Patents.
US3630974A
Expired / Lapsed
US
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Ternary rubber blend
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1970-01-29
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Granted: 1971-12-28
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Expires: 1990-01-29
Abstract
Abstract A THREE PART BLEND OF ETHYLENE-PROPYLENE TERPOLYMER, HALOBUTYL RUBBER, AND A HIGH UNSATURATION RUBBER, HAS SURPRISINGLY IMPROVED PHYSICAL PROPERTIES AFTER VULCANIZATION.
Inventors
- 👤 Lewis T Ladocsi
- 👤 Donald G Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:21
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08L23/00; C08L23/02; C08L23/16; C08L23/26; C08L23/28; C08L23/283; C08L7/00; C08L91/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 0
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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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |