US3369924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas pressure impregnation of porous bearing with molten tetrafluoroethylene polymer
Assignee: EIDP Inc
•
Filing: 1964-05-27
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Granted: 1968-02-20
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Duggins Ray Brown
- 👤 Jackson Harold Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:39
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/128; F16C33/16; F16C33/24; F16C2208/00; F16C2208/20; F16C2208/30; F16C2208/32; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2364713A
Cited
US2691814A
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US2718485A
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US2838829A
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US2982671A
Cited
US3049448A
Cited
US3160519A
Cited
US3298753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |