US2439164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switch
Assignee: James R Kearney Corp
•
Filing: 1944-11-03
•
Granted: 1948-04-06
•
Expires: 1964-11-03
Abstract
No abstract record available.
Inventors
- 👤 Fox Charles Adin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:57
CPC Classifications
H; H01; H01H; H01H31/00; H01H31/02; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/121; H01H33/123; H01H33/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US884775A
Cited
US860481A
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US1850703A
Cited
US1877986A
Cited
US2011503A
Cited
US1971392A
Cited
US2179484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |