US2576609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch operating mechanism
Assignee: DESIGNERS FOR INDUSTRY Inc
•
Filing: 1949-12-31
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Granted: 1951-11-27
•
Expires: 1969-12-31
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Kreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/08; H01H51/082; H01H51/086; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1504227A
Cited
US2025978A
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GB514841A
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US2399906A
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US2454646A
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US2435978A
Cited
US2475647A
Cited
US2509928A
Cited
US2473565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |