Patent US3098919A successfully refreshed from Google Patents.
US3098919A
Expired / Lapsed
US
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Condition control system
Assignee: Schneider Electric Buildings Americas Inc
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Filing: 1959-05-13
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Granted: 1963-07-23
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Expires: 1979-05-13
Abstract
No abstract record available.
Inventors
- 👤 William A Paulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:04
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/2451; G05D23/2456
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
IN A CONTROL SYSTEM FOR CONTROLLING A VARIABLE CONDITION, THE COMBINATION COMPRISING SENSING MEANS FOR PROVIDING A CONDITION RESPONSIVE SIGNAL, AMPLIFYING MEANS INCLUDING A PAIR OF INPUT TERMINALS COUPLED TO SAID SENSING MEANS, A FINAL CONTROL ELEMENT COUPLED TO SAID AMPLIFYING MEANS FOR VARYING A MANIPULATED VARIABLE FOR CORRECTIVE CONTROL OF THE CONDITION, A CONTROLLED IMPEDANCE SIGNAL SHUNT MEANS COUPLED TO SAID INPUT TERMINALS, AND SHUNT CONTROL MEANS COUPLED TO SAID FINAL CONTROL
References Cited (Backward Citations)
US2629786A
Cited
US2514935A
Cited
US2761052A
Cited
US2933672A
Cited
US2886755A
Cited
US2896057A
Cited
US2875382A
Cited
US2872556A
Cited
US2957111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |