US2665347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit breaker
Assignee: Mechanical Products Inc
•
Filing: 1952-05-24
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Granted: 1954-01-05
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Expires: 1972-05-24
Abstract
No abstract record available.
Inventors
- 👤 Ingwersen Richard Castle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:29
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/02; H01H73/18; H01H73/04; H01H73/045
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |