US3085193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear electrical compensation circuits
Assignee: Statham Instrument Inc
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Filing: 1960-10-10
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Granted: 1963-04-09
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Peter R Perino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:39
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2268; G01R; G01R17/00; G01R17/10; G01R17/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A BALANCED COMPENSATED WHEATSTONE BRIDGE CIRCUIT COMPRISING FOUR IMPEDANCE LEGS, A RESISTOR HAVING A POSITIVE TEMPERATURE COEFFICIENT OF RESISTANCE ELECTRICALLY CONNECTED TO ONE OF SAID LEGS TO MODIFY THE IMPEDANCE OF SAID ONE LEG AND A SEPARATE PARALLEL RESISTANCE CIRCUIT ELECTRICALLY CONNECTED TO ONE OF SAID LEGS TO MODIFY THE IMPEDANCE OF SAID LAST-NAMED ONE LEG, SAID PARALLEL RESISTANCE CIRCUIT COMPRISING IN PARALLEL A RESISTOR HAVING A POSITIVE TEMPERATURE COEFFICIENT OF RESISTANCE AND A RESISTOR HAVING A NEGATIVE TEMPERATURE COEFFICIENT OF RESISTANCE.
Claim 2
Dependent Claim
82 words
A BALANCED COMPENSATED WHEATSTONE BRIDGE CIRCUIT COMPRISING FOUR IMPEDANCE LEGS, A RESISTOR HAVING A POSITIVE TEMPERATURE COEFFICIENT OF RESISTANCE ELECTRICALLY CONNECTED TO ONE OF SAID LEGS TO MODIFY THE IMPEDANCE OF SAID ONE LEG AND A SEPARATE PARALLEL RESISTANCE CIRCUIT ELECTRICALLY CONNECTED TO ONE OF SAID LEGS TO MODIFY THE IMPEDANCE OF SAID LAST-NAMED ONE LEG, SAID PARALLEL RESISTANCE CIRCUIT COMPRISING IN PARALLEL A RESISTOR HAVING A POSITIVE TEMPERATURE COEFFICIENT OF RESISTANCE AND A RESISTOR HAVING A NEGATIVE TEMPERATURE COEFFICIENT OF RESISTANCE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |