US2649520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switch
Assignee: Jack & Heintz Prec Ind Inc
•
Filing: 1951-05-24
•
Granted: 1953-08-18
•
Expires: 1971-05-24
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Hartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:21
CPC Classifications
H; H01; H01H; H01H5/00; H01H5/04; H01H5/18; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2024362A
Cited
US2363280A
Cited
FR898762A
Cited
US2399123A
Cited
US2540421A
Cited
US2574869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |