US2675443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric controller
Assignee: Individual
•
Filing: 1950-03-09
•
Granted: 1954-04-13
•
Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:54
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/12; H01H50/00; H01H50/54; H01H50/541; H01H51/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863185A
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US1227568A
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US1251594A
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US1550611A
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US1719563A
Cited
US1694977A
Cited
DE447751C
Cited
US1794721A
Cited
US1668841A
Cited
US1863836A
Cited
US2269741A
Cited
US2452065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |