US2473970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap acting device and electric switch
Assignee: FIRST IND CORP
•
Filing: 1946-08-29
•
Granted: 1949-06-21
•
Expires: 1966-08-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Riche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:05
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/28; H01H13/285; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1493559A
Cited
FR620078A
Cited
US1843933A
Cited
US2086474A
Cited
US2125432A
Cited
US2200995A
Cited
US2384412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |