US2752039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic resistance tester for resistor producing system
Assignee: Electra Manufacturing Co
•
Filing: 1952-04-24
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Granted: 1956-06-26
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Expires: 1972-04-24
Abstract
No abstract record available.
Inventors
- 👤 Victor A Woodell
- 👤 Paul R Hanaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R31/00; G01R31/12; G01R31/18; Y; Y10; Y10S; Y10S209/00; Y10S209/921; Y10S209/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |