US2574281A
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US
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Assignee: Individual
•
Filing: 1945-04-23
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Granted: 1951-11-06
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Expires: 1965-04-23
Abstract
No abstract record available.
Inventors
- 👤 Olson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:27
CPC Classifications
G; G05; G05G; G05G7/00; G05G7/02; G05G7/04; B; B25; B25B; B25B5/00; B25B5/06; B25B5/12; F; F16; F16H; F16H21/00; F16H21/10; F16H21/44; G05G5/00; G05G5/06; G05G2700/00; G05G2700/04; G05G2700/08; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44333; Y10T29/00; Y10T29/53; Y10T29/53909; Y10T29/53913; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18952; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588
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) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |