US2657349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed standardization of potentiometers
Assignee: Leeds and Northrup Co
•
Filing: 1947-01-31
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Granted: 1953-10-27
•
Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert J Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
G; G01; G01R; G01R17/00; G01R17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2264956A
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US2300742A
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US2404342A
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US2423540A
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US2367746A
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US2424146A
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US2457791A
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US2446153A
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US2489999A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |