Patent US2668914A successfully refreshed from Google Patents.
US2668914A
Expired / Lapsed
US
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Power unit
Assignee: UHER ENGINEERING Co
•
Filing: 1952-09-04
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Granted: 1954-02-09
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Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Uher Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:06
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056417A
Cited
US1442108A
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US1207821A
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US1147956A
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US1139210A
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US1174545A
Cited
US1396004A
Cited
US1926029A
Cited
US2144445A
Cited
US2410849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-08 | 1957-08-10 | 1958-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-08 | 1961-08-10 | 1962-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-08 | 1965-08-10 | 1966-02-09 | $7700.00 | Window Closed / Lapsed |