US2433743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric safety centering device
Assignee: JOHN E OSBORNE
•
Filing: 1945-07-19
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Granted: 1947-12-30
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Expires: 1965-07-19
Abstract
No abstract record available.
Inventors
- 👤 Dickens La Verne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:47
CPC Classifications
B; B23; B23Q; B23Q11/00; B23B; B23B23/00; B23B23/02; G; G01; G01B; G01B7/00; G01B7/30; G01B7/31; B23B2250/00; B23B2250/12; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2568; Y10T82/2572
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) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |