Patent US2810370A successfully refreshed from Google Patents.
US2810370A
Expired / Lapsed
US
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Combined power cylinder and valve construction
Assignee: PATHON Manufacturing Co
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Filing: 1954-01-18
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Granted: 1957-10-22
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Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 John A Fox
- 👤 Hoene Harry L Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:33
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/22; F15B15/224
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |