US2578503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switch means
Assignee: Individual
•
Filing: 1945-10-03
•
Granted: 1951-12-11
•
Expires: 1965-10-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Burrichter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
G; G04; G04C; G04C23/00; Y; Y10; Y10T; Y10T74/00; Y10T74/11; Y10T74/114; Y10T74/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1224632A
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US1983759A
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US1726520A
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US2297152A
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US2130164A
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US2166691A
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US2284916A
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US2228969A
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US2346623A
Cited
US2387961A
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US2410724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |