US2687615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial type hydraulic pump
Assignee: SHALLCROSS CONTROLS Inc
•
Filing: 1952-02-21
•
Granted: 1954-08-31
•
Expires: 1972-02-21
Abstract
No abstract record available.
Inventors
- 👤 John A Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:15
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/10; F04B1/107; F04B1/1071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358454A
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US1485986A
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US1641509A
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US1738375A
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US2137448A
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GB492463A
Cited
US2335284A
Cited
US2454563A
Cited
US2545238A
Cited
US2461235A
Cited
US2528739A
Cited
US2599609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |