Patent US1628665A successfully refreshed from Google Patents.
Patent US3526168A successfully refreshed from Google Patents.
US3526168A
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Hydraulic piston
Assignee: Westinghouse Electric Corp
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Filing: 1968-10-30
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Granted: 1970-09-01
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Expires: 1988-10-30
Abstract
No abstract record available.
Inventors
- 👤 Charles R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:17
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/12; B; B63; B63G; B63G8/00; B63G8/08; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/15; F16; F16C; F16C29/00; F16C29/02; F16C29/025; F16C32/00; F16C32/06; F16C32/0681; F16C32/0685; B63H23/00; B63H23/32; B63H23/321; B63H2023/325; F16C2326/00; F16C2326/30
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) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |