Patent US3465651A successfully refreshed from Google Patents.
US3465651A
Expired / Lapsed
US
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Composite pistons
Assignee: Alco Power Inc
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Filing: 1968-02-13
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Granted: 1969-09-09
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Expires: 1988-02-13
Abstract
No abstract record available.
Inventors
- 👤 Frederic C Tromel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:22
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/0015; F02F3/0023; F02F3/16; F02F3/20; F02F3/22; F02F2200/00; F02F2200/04; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2201/04; F05C2201/0433; F05C2201/0448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |