Patent US2487321A successfully refreshed from Google Patents.
US2487321A
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US
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Speed responsive variable capacity rotary fluid motor having fluid actuated radially sliding vanes
Assignee: FARMINGDALE Corp
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Filing: 1945-07-31
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Granted: 1949-11-08
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Expires: 1965-07-31
Abstract
No abstract record available.
Inventors
- 👤 Albert A Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
F; F16; F16H; F16H39/00; F16H39/04; F16H39/06; F16H39/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |