USRE28105E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing assembly
Assignee: —
•
Filing: 1972-09-22
•
Granted: 1974-08-06
•
Expires: 1992-09-22
Abstract
Abstract A SEALING ASSEMBLY INCLUDING A SLIPPER SEAL AND AN ELASTOMERIC SEAL WITH ONE OF THE SEALS CIRCUMSCRIBING THE OTHER OF THE SEALS. THE SLIPPER SEAL INCLUDES FIRST AND SECOND END PORTIONS SEPARATED BY A CENTRAL PORTION WITH THE CENTRAL PORTION HAVING A CIRCUMFERENTIAL SURFACE ADAPTED TO SLIDINGLY AND SEALINGLY ENGAGE A MEMBER. THE CIRCUMFERENTIAL SURFACE IS GENERALLY FLAT IN AXIAL CROSS SECTION AND THE FIRST AND SECOND END PORTIONS TAPER RADIALLY AWAY FROM SUCH MEMBER SO THAT THEY DO NOT ENGAGE SUCH MEMBER.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |