US2798920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit breaker with mechanical latch setting thermal latch
Assignee: Mechanical Products Inc
•
Filing: 1955-07-25
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Granted: 1957-07-09
•
Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Richard C Ingwersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:17
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/30; H01H71/00; H01H71/04; H01H2071/046; H01H9/00; H01H9/02; H01H9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT96440B
Cited
US2156761A
Cited
US2328767A
Cited
US2461338A
Cited
US2600223A
Cited
US2701829A
Cited
US2681396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |