US2469277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power conversion attachment
Assignee: Individual
•
Filing: 1944-08-21
•
Granted: 1949-05-03
•
Expires: 1964-08-21
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/08; F16H25/12; B; B23; B23D; B23D51/00; B23D51/16; B23D57/00; B23D57/0076; B23Q; B23Q5/00; B23Q5/02; B23Q5/027; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US867394A
Cited
US1177609A
Cited
US1134047A
Cited
US1824938A
Cited
US1801017A
Cited
US1871020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |