US3013307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrile rubber product and process for making the same
Assignee: Federal Mogul Bower Bearings Inc
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Filing: 1959-12-30
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Granted: 1961-12-19
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 George D Rhoads
- 👤 Vasalie L Peickii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:29
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/08; C08J2309/00; C08J2309/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
A METHOD FOR MANUFACTURING ELASTOMERIC OIL SEALS WITH AN ABNORMALLY HIGH ABRASION-RESISTANCE FROM A COMPOSITION CONTAINING A BUTADIENE-ACRYLONITRILE COPOLYMER, COMPRISING: MOLDING THE COMPOSITION INTO OIL SEALS, PRESS-CURING THE SEAL, REMOVING THE COMPLETELY CURED SEAL FROM THE MOLD, TRIMMING AND OTHERWISE FINISHING THE SEAL, AND THEN EXPOSING THE COMPLETELY CURED AND FINISHED SEAL TO THE EFFECTS OF A TEMPERATURE OF ABOUT 350*F. FOR ABOUT 4 TO 6 HOURS.
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |