US2754050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary blower
Assignee: Motors Liquidation Co
•
Filing: 1950-04-22
•
Granted: 1956-07-10
•
Expires: 1970-04-22
Abstract
No abstract record available.
Inventors
- 👤 Roger D Wellington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:53
CPC Classifications
F; F04; F04C; F04C18/00; F04C18/08; F04C18/12; F04C18/126; Y; Y10; Y10S; Y10S29/00; Y10S29/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49329; Y10T428/00; Y10T428/23907; Y10T428/23943; Y10T428/249921; Y10T428/249924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1002176A
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US1053677A
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US1652323A
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US2069470A
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US2220588A
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GB535554A
Cited
US2393116A
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US2491677A
Cited
US2492935A
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US2491678A
Cited
US2505197A
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US2519588A
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US2496070A
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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) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |