Patent US2373457A successfully refreshed from Google Patents.
US2373457A
Expired / Lapsed
US
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Hydraulic pump or motor
Assignee: Houdaille Hershey Corp
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Filing: 1942-05-08
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Granted: 1945-04-10
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Expires: 1962-05-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry L Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:16
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/06; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0854; F01C21/0863; F04C14/00; F04C14/04; F04C2/00; F04C2/30; F04C2/34; F04C2/356; F04C2/3566
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) | 1948-04-09 | 1948-10-09 | 1949-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-09 | 1952-10-09 | 1953-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-09 | 1956-10-09 | 1957-04-10 | $7700.00 | Window Closed / Lapsed |