Patent US2540903A successfully refreshed from Google Patents.
US2540903A
Expired / Lapsed
US
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Rubber seal for hydraulic motors
Assignee: HYDROMOTOR Inc
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Filing: 1949-07-30
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Granted: 1951-02-06
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Expires: 1969-07-30
Abstract
No abstract record available.
Inventors
- 👤 Charles L Moushey
- 👤 Hall John Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:25
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54; F16J15/545; F15; F15B; F15B15/00; F15B15/08; F15B15/12
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) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |