US3169807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air bearing
Assignee: TANN CORP
•
Filing: 1962-06-28
•
Granted: 1965-02-16
•
Expires: 1982-06-28
Abstract
No abstract record available.
Inventors
- 👤 Martin L Abel
- 👤 Tann David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:30
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0603; F16C32/0614; F16C32/0618; F16C11/00; F16C11/04; F16C11/06; F16C11/0619; F16C32/0681; F16C32/0685
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
AN AIR BEARING COMPRISING A POROUS BODY HAVING A DIMPLED BEARING SURFACE, THE NON-DIMPLED PORTION OF SAID BEARING SURFACE BEING SEALED OFF WHEREBY PRESSURIZED AIR INTRODUCED INTO SAID POROUS BODY WILL PASS THERETHROUGH AND BE EJECTED FROM SAID BEARING SURFACE THROUGH SAID DIMPLES THEREON.
Claim 2
Dependent Claim
44 words
AN AIR BEARING COMPRISING A POROUS BODY HAVING A DIMPLED BEARING SURFACE, THE NON-DIMPLED PORTION OF SAID BEARING SURFACE BEING SEALED OFF WHEREBY PRESSURIZED AIR INTRODUCED INTO SAID POROUS BODY WILL PASS THERETHROUGH AND BE EJECTED FROM SAID BEARING SURFACE THROUGH SAID DIMPLES THEREON.
References Cited (Backward Citations)
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Cited
US2615760A
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US2696410A
Cited
US2683636A
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US2645534A
Cited
US2855249A
Cited
US2902748A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |