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US2489426A
Expired / Lapsed
US
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High-potential electric switch
Assignee: AB Chance Co
•
Filing: 1947-09-10
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Granted: 1949-11-29
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Expires: 1967-09-10
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Linde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:04
CPC Classifications
H; H01; H01H; H01H31/00; H01H31/26; H01H31/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1907141A
Cited
US1935597A
Cited
US1949164A
Cited
US2011503A
Cited
US2303119A
Cited
US2354991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |