US2528520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid operated switch
Assignee: Motorola Solutions Inc
•
Filing: 1947-05-17
•
Granted: 1950-11-07
•
Expires: 1967-05-17
Abstract
No abstract record available.
Inventors
- 👤 Wilbur C Jackson
- 👤 Louis T Clemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:16
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/08; H01H51/082; H01H51/084; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1285072A
Cited
US1315204A
Cited
US701627A
Cited
US820119A
Cited
GB190908025A
Cited
US1934320A
Cited
CH180172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |