US3333185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic device for extrapolating exponential signals
Assignee: Corning Glass Works
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Filing: 1963-12-30
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Granted: 1967-07-25
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 John H Riseman
- 👤 James W Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:32
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/0023; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/416; G01N27/4166; G06; G06G; G06G7/00; G06G7/12; G06G7/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
AN INSTRUMENTATION SYSTEM COMPRISING, IN COMBINATION, A TRANSDUCER FOR PROVIDING AN ELECTRICAL OUTPUT SIGNAL WHICH WHEN TRANSIENT IS CHARACTERIZED IN THAT IT APPROACHES A STEADY-STATE VALUE SUBSTANTIALLY ACCORDING TO AN EXPONENTIAL FUNCTION IN VARIABLE TIME, MEANS RESPONSIVE TO SAID TRANSIENT SIGNAL FOR PROVIDING AN ERROR SIGNAL WHICH IS THE QUOTIENT OF THE MULTIPLE OF A FIRST DERIVATIVE OF SAID TRANSIENT SIGNAL TIMES THE ABSOLUTE VALUE OF SAID FIRST DERIVATIVE DIVIDED BY THE ABSOLUTE VALUE OF A SECOND DERIVATIVE OF SAID TRANSIENT SIGNAL, AND MEANS FOR SUMMING SAID ELECTRICAL OUTPUT SIGNAL WITH SAID ERROR SIGNAL.
References Cited (Backward Citations)
US2728522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |