US2691114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generator brush with condition indicator
Assignee: Individual
•
Filing: 1951-05-08
•
Granted: 1954-10-05
•
Expires: 1971-05-08
Abstract
No abstract record available.
Inventors
- 👤 Earl D Lykins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:56
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/34; G01R31/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE590950C
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US942264A
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US1295860A
Cited
AT88470B
Cited
DE560232C
Cited
US2146357A
Cited
US2193172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |