Patent US2013473A successfully refreshed from Google Patents.
US2013473A
Expired / Lapsed
US
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Fluid propeller
Assignee: GAUGER
•
Filing: 1932-09-24
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Granted: 1935-09-03
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Expires: 1952-09-24
Abstract
No abstract record available.
Inventors
- 👤 Karl A Meyer
- 👤 Frank A Gauger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:34
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/38; F04D29/384; F05; F05D; F05D2240/00; F05D2240/20; F05D2240/30; F05D2240/304
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) | 1938-09-02 | 1939-03-04 | 1939-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-02 | 1943-03-04 | 1943-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-02 | 1947-03-04 | 1947-09-03 | $7700.00 | Window Closed / Lapsed |