US2477002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear type air pump with changespeed gearing and lubrication
Assignee: Joy Manufacturing Co
•
Filing: 1942-07-25
•
Granted: 1949-07-26
•
Expires: 1962-07-25
Abstract
No abstract record available.
Inventors
- 👤 Win W Paget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:06
CPC Classifications
F; F04; F04C; F04C28/00; F04C28/10; F04C28/16; F04C18/00; F04C18/08; F04C18/12; F04C18/14; F04C18/16; F04C28/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US397337A
Cited
US1686505A
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US2313149A
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FR466157A
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US1669050A
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FR679386A
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US1954436A
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US2044867A
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US2020987A
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US2111568A
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US2174522A
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US2307251A
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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) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |