Patent US2678251A successfully refreshed from Google Patents.
US3045163A
Expired / Lapsed
US
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Motor controlling apparatus
Assignee: Weltronic Co
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Filing: 1957-09-09
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Granted: 1962-07-17
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Donald J Collom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/16; H02P1/26; H02P1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB386992A
Cited
US2299911A
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US2444186A
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US2703860A
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US2731594A
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US2726356A
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US2663834A
Cited
US2681428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |