US2948320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Co-vulcanized butyl rubber with highly unsaturated rubbers by amino compounds
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-05-02
•
Granted: 1960-08-09
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Expires: 1975-05-02
Abstract
No abstract record available.
Inventors
- 👤 Francis P Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/29; B; B60; B60C; B60C1/00; B60C1/0008; C08K5/17; C08L; C08L21/00; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A COMPOSITION COMPRISING AN ACCELERATOR-FREE COVULCANIZABLE ADMIXTURE OF A MAJOR AMOUNT OF A RUBBERY COPOLYMER CONTAINING A MAJOR PROPORTION OF A C-4-C8 OLEFIN AND A MINOR PROPORTION OF A C4-C14 MULTIOLEFIN WITH A MINOR AMOUNT OF A MORE HIGHLY UNSATURATED RUBBER, ABOUT 0.1 TO 3 PARTS OF SULFUR, AND AN ORGANIC NITROGEN-CONTAINING COMPOUND CONTAINING AT LEAST ONE
Claim 2
Dependent Claim
57 words
A COMPOSITION COMPRISING AN ACCELERATOR-FREE COVULCANIZABLE ADMIXTURE OF A MAJOR AMOUNT OF A RUBBERY COPOLYMER CONTAINING A MAJOR PROPORTION OF A C-4-C8 OLEFIN AND A MINOR PROPORTION OF A C4-C14 MULTIOLEFIN WITH A MINOR AMOUNT OF A MORE HIGHLY UNSATURATED RUBBER, ABOUT 0.1 TO 3 PARTS OF SULFUR, AND AN ORGANIC NITROGEN-CONTAINING COMPOUND CONTAINING AT LEAST ONE
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |