US3013967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoropropylene and tetrafluoroethylene copolymer and nylon bearing
Assignee: Dixon Corp
•
Filing: 1957-09-10
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Granted: 1961-12-19
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Expires: 1977-09-10
Abstract
No abstract record available.
Inventors
- 👤 Rulou-Miller Robert
- 👤 Jr William A Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:08
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L77/00; C08L77/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A BEARING FOR A RELATIVELY MOVING SURFACE CONSISTING ESSENTIALLY OF A COPOLYMER OF SUBSTANTIAL QUANTITIES OF PERFLUOROPROPYLENE AND TETRAFLUOROETHYLENE BY VOLUME 50 TO 90 PERCENT WITH THE REMAINDER FORMED OF NYLON MIXED WITH THE COPOLYMER, SAID MIXTURE HAVING BEEN HEATED TO A TEMPERATURE RANGING FROM THE MELTING POINT OF NYLON TO THE MELTING POINT OF THE COPOLYMER, SAID COPOLYMER HAVING 10% TO 40% PERFLUOROPROPYLENE AND 60% TO 90% TETRAFLUOROETHYLENE.
Claim 2
Dependent Claim
69 words
A BEARING FOR A RELATIVELY MOVING SURFACE CONSISTING ESSENTIALLY OF A COPOLYMER OF SUBSTANTIAL QUANTITIES OF PERFLUOROPROPYLENE AND TETRAFLUOROETHYLENE BY VOLUME 50 TO 90 PERCENT WITH THE REMAINDER FORMED OF NYLON MIXED WITH THE COPOLYMER, SAID MIXTURE HAVING BEEN HEATED TO A TEMPERATURE RANGING FROM THE MELTING POINT OF NYLON TO THE MELTING POINT OF THE COPOLYMER, SAID COPOLYMER HAVING 10% TO 40% PERFLUOROPROPYLENE AND 60% TO 90% TETRAFLUOROETHYLENE.
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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 |