US3092427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanded piston cup assembly
Assignee: HYPRO ENGINEERING Inc
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Filing: 1961-05-08
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Granted: 1963-06-04
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Expires: 1981-05-08
Abstract
No abstract record available.
Inventors
- 👤 Harry J Sadler
- 👤 Ernest E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:44
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/14; F04B53/143; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN EXPANDED PISTON CUP ASSEMBLAGE COMPRISING, A RESILIENT PISTON CUP HAVING AN UPPER RIDING PORTION AND A BASE DEFINING A RECESSED PORTION WITH INNER SIDE WALLS, A RELATIVELY STIFFER BACKER ENCIRCLING SAID PISTON CUP REARWARDLY OF SAID UPPER RIDING PORTION AND HAVING AN OUTER DIAMETER NO GREATER THAN THAT OF SAID UPPER RIDING PORTION, A RIGID MEANS LYING WITHIN THE UPPER RIDING PORTION OF SAID RESILIENT PISTON CUP, AND A DISTENDED BIASING
Claim 2
Dependent Claim
72 words
AN EXPANDED PISTON CUP ASSEMBLAGE COMPRISING, A RESILIENT PISTON CUP HAVING AN UPPER RIDING PORTION AND A BASE DEFINING A RECESSED PORTION WITH INNER SIDE WALLS, A RELATIVELY STIFFER BACKER ENCIRCLING SAID PISTON CUP REARWARDLY OF SAID UPPER RIDING PORTION AND HAVING AN OUTER DIAMETER NO GREATER THAN THAT OF SAID UPPER RIDING PORTION, A RIGID MEANS LYING WITHIN THE UPPER RIDING PORTION OF SAID RESILIENT PISTON CUP, AND A DISTENDED BIASING
References Cited (Backward Citations)
US1000563A
Cited
US1945524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |