US3196278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Area type photo-electric control device
Assignee: Cutler Hammer Inc
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Filing: 1961-09-12
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Granted: 1965-07-20
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Expires: 1981-09-12
Abstract
No abstract record available.
Inventors
- 👤 Dale A Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:47
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/017; H; H02; H02P; H02P1/00; H02P1/02; H02P1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SELECTIVELY ADJUSTABLE CONTROL DEVICE FOR PROVIDING AN ELECTRICAL SIGNAL HAVING A MAGNITUDE WHICH IS PROPORTIONAL TO ADJUSTMENT OF THE CONTROL DEVICE COMPRISING: AREA-TYPE PHOTO-ELECTRIC MEANS RESPONSIVE TO VARIABLE LIGHT TO PROVIDE A PROPORTIONALLY VARIABLE ELECTRICAL OUTPUT SIGNAL; AN AREA-TYPE PRIMARY LUMINESCENT SOURCE SPACED CLOSELY PARALLEL TO SAID PHOTO-ELECTRIC MEANS SO THAT UNIT AREAS OF SAID PHOTO-ELECTRIC MEANS ARE EXPOSED TO
Claim 2
Dependent Claim
61 words
A SELECTIVELY ADJUSTABLE CONTROL DEVICE FOR PROVIDING AN ELECTRICAL SIGNAL HAVING A MAGNITUDE WHICH IS PROPORTIONAL TO ADJUSTMENT OF THE CONTROL DEVICE COMPRISING: AREA-TYPE PHOTO-ELECTRIC MEANS RESPONSIVE TO VARIABLE LIGHT TO PROVIDE A PROPORTIONALLY VARIABLE ELECTRICAL OUTPUT SIGNAL; AN AREA-TYPE PRIMARY LUMINESCENT SOURCE SPACED CLOSELY PARALLEL TO SAID PHOTO-ELECTRIC MEANS SO THAT UNIT AREAS OF SAID PHOTO-ELECTRIC MEANS ARE EXPOSED TO
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |