US2428515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind and water motor
Assignee: Individual
•
Filing: 1946-06-03
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Granted: 1947-10-07
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Expires: 1966-06-03
Abstract
No abstract record available.
Inventors
- 👤 Ula L Courson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:55
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03B; F03B17/00; F03B17/06; F03B17/062; F03B17/065; F03D3/00; F03D3/005; F05; F05B; F05B2240/00; F05B2240/20; F05B2240/21; F05B2240/211; F05B2260/00; F05B2260/70; F05B2260/72; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E10/70; Y02E10/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |