US3098919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 09:08
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
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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 |