Patent US2672746A successfully refreshed from Google Patents.
US2672746A
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Switch-handle lock
Assignee: Federal Electric Products Co
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Filing: 1949-02-10
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Granted: 1954-03-23
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Expires: 1969-02-10
Abstract
No abstract record available.
Inventors
- 👤 Arens Egmont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:20
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/28; H01H9/281; H01H9/282; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5403; Y10T70/5465; Y10T70/5482; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/577
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US195611A
Cited
US1220174A
Cited
US1247532A
Cited
US1356863A
Cited
US1499427A
Cited
US1909453A
Cited
US2026695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |