US2497542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay magnetic starter
Assignee: General Electric Co
•
Filing: 1947-06-27
•
Granted: 1950-02-14
•
Expires: 1967-06-27
Abstract
No abstract record available.
Inventors
- 👤 Theodore W Frech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:08
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; H05B41/10; Y; Y10; Y10S; Y10S315/00; Y10S315/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US830921A
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US1858876A
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US2112718A
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US2177832A
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US2259570A
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US2286847A
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US2363433A
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US2394436A
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US2445401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |