Patent US3345348A successfully refreshed from Google Patents.
US3345348A
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Sulfur tetrafluoride treated elastomers having a low coefficient of friction
Assignee: Motors Liquidation Co
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Filing: 1964-06-03
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Granted: 1967-10-03
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Gerald J Tennenhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:14
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0067; B29C71/00; B29C71/0009; B29C71/009; C; C08; C08J; C08J7/00; C08J7/08; B29K; B29K2021/00; C08J2321/00; C08J2355/00; C08J2355/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE PROCESS WHICH COMPRISES DIRECTLY CONTACTING AN ELASTOMER TAKEN FROM THE CLASS CONSISTING OF NATURAL RUBBER, BUTADIENE-STYRENE COPOLYMERS, BUTADIENE-ACRYLONITRILE COPOLYMERS AND POLYCHLOROPRENE, WITH SULFUR TETRAFLUORIDE, THEREBY SUBSTANTIALLY REDUCING THE COEFFICIENT OF FRICTION OF THE ELASTOMER SURFACE WITHOUT SUBSTANTIAL CHANGE IN THE PHYSICAL FORM THEREOF.
Claim 2
Dependent Claim
44 words
THE PROCESS WHICH COMPRISES DIRECTLY CONTACTING AN ELASTOMER TAKEN FROM THE CLASS CONSISTING OF NATURAL RUBBER, BUTADIENE-STYRENE COPOLYMERS, BUTADIENE-ACRYLONITRILE COPOLYMERS AND POLYCHLOROPRENE, WITH SULFUR TETRAFLUORIDE, THEREBY SUBSTANTIALLY REDUCING THE COEFFICIENT OF FRICTION OF THE ELASTOMER SURFACE WITHOUT SUBSTANTIAL CHANGE IN THE PHYSICAL FORM THEREOF.
References Cited (Backward Citations)
US2983626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |