Patent US3413543A successfully refreshed from Google Patents.
US3413543A
Expired / Lapsed
US
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Compensated ferroelectric hysteresiscope employing ground reference
Assignee: Motors Liquidation Co
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Filing: 1965-04-23
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Granted: 1968-11-26
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Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Norman W Schubring
- 👤 Meduvsky Alexander
- 👤 James P Nolta
- 👤 Ronald A Dork
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:43
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R27/26; G01R27/2617; G01R27/2623
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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |