US2820113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switching device
Assignee: Rodale Manufacturing Co Inc
•
Filing: 1956-03-08
•
Granted: 1958-01-14
•
Expires: 1976-03-08
Abstract
No abstract record available.
Inventors
- 👤 Harold P Lewis
- 👤 Schmier Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:18
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/50; H01H13/56; H01H13/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR962714A
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US683692A
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US1495592A
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CH215215A
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US2395572A
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US2547998A
Cited
US2517845A
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US2727956A
Cited
US2743330A
Cited
US2721914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |