US2662864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber compositions with oxidized microcrystalline wax
Assignee: Marathon Corp
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Filing: 1951-11-02
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Granted: 1953-12-15
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Expires: 1971-11-02
Abstract
No abstract record available.
Inventors
- 👤 George G Rumberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:36
CPC Classifications
C; C08; C08L; C08L7/00; C08L21/00; C08L9/00; C08L9/06; C08L91/00; C08L91/06; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
AN IMPROVED SYNTHETIC RUBBER COMPRISING A BUTADIENE POLYMER AND ABOUT 1% TO ABOUT 10%, BASED ON THE WEIGHT OF THE RUBBER, OF OXIDIZED MICROCYSTALLINE WAX HAVING A PEROXIDE NUMBER IN THE RANGE OF ABOUT 150 TO ABOUT 330 AND AN ACID NUMBER LESS THAN ABOUT 50.
Claim 2
Dependent Claim
46 words
AN IMPROVED SYNTHETIC RUBBER COMPRISING A BUTADIENE POLYMER AND ABOUT 1% TO ABOUT 10%, BASED ON THE WEIGHT OF THE RUBBER, OF OXIDIZED MICROCYSTALLINE WAX HAVING A PEROXIDE NUMBER IN THE RANGE OF ABOUT 150 TO ABOUT 330 AND AN ACID NUMBER LESS THAN ABOUT 50.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |