US2859406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-indicating apparatus
Assignee: Polarad Electronics Corp
•
Filing: 1955-09-08
•
Granted: 1958-11-04
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Expires: 1975-09-08
Abstract
No abstract record available.
Inventors
- 👤 Jaffe David Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
G; G01; G01R; G01R21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2413021A
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US2464277A
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US2485904A
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US2648047A
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US2576060A
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US2442619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |