US3311842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital transducer with condition responsive shock excited resonant circuit
Assignee: International Business Machines Corp
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Filing: 1965-01-19
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Granted: 1967-03-28
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Expires: 1985-01-19
Abstract
No abstract record available.
Inventors
- 👤 John W Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:07
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01D; G01D5/00; G01D5/12; G01D5/243; G01K; G01K7/00; G01K7/34; G01K7/343; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
IN A VARIABLE MEASURING SYSTEM, A REACTIVE ELEMENT HAVING A VALUE DEPENDENT ON THE VARIABLE TO BE MEASURED, MEANS CONNECTING SAID ELEMENT AS A PART OF A RESONANT CIRCUIT TO MAKE THE RESONANT FREQUENCY THEREOF AT LEAST PARTIALLY DEPENDENT ON THE VARIABLE TO BE MEASURED, MEANS FOR SHOCK EXCITING SAID CIRCUIT WITH A PULSE TO INDUCE OSCILLATIONS THEREIN, AND MEANS CONNECTED TO SAID CIRCUIT FOR DETERMINING THE FREQUENCY OF SAID OSCILLATIONS.
References Cited (Backward Citations)
US2713639A
Cited
US2774870A
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US2851877A
Cited
US2817019A
Cited
US3019397A
Cited
US3164993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |