Patent US3298753A successfully refreshed from Google Patents.
US3298753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon and carbon-graphite bearings with anti-friction surface
Assignee: Carbone Corp
•
Filing: 1963-05-30
•
Granted: 1967-01-17
•
Expires: 1983-05-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Edgar P Eaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:49
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/16; F16C33/20; F16C33/201; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/905; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A SELF-LUBRICATING BEARING STRUCTURE COMPRISING AN ESSENTIALLY CARBON-GRAPHITE SUPPORT OF SUBSTANTIAL THICKNESS AND A SUBSTANTIALLY CONTINUOUS THIN LAYER OF TETRAFLUORETHYLENE BONDED TO THE LOAD RECEIVING SURFACES OF THE SUPPORT.
Claim 2
Dependent Claim
29 words
A SELF-LUBRICATING BEARING STRUCTURE COMPRISING AN ESSENTIALLY CARBON-GRAPHITE SUPPORT OF SUBSTANTIAL THICKNESS AND A SUBSTANTIALLY CONTINUOUS THIN LAYER OF TETRAFLUORETHYLENE BONDED TO THE LOAD RECEIVING SURFACES OF THE SUPPORT.
References Cited (Backward Citations)
GB721211A
Cited
GB731348A
Cited
US2772928A
Cited
US2774704A
Cited
GB769390A
Cited
US3037893A
Cited
US3056709A
Cited
US3155441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |