US2496049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overload indicating safety switch
Assignee: Individual
•
Filing: 1946-09-06
•
Granted: 1950-01-31
•
Expires: 1966-09-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:12
CPC Classifications
H; H01; H01H; H01H77/00; H01H77/02; H01H77/04; H01H73/00; H01H73/02; H01H73/12; H01H73/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |