US3254534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated control devices
Assignee: Robertshaw Controls Co
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Filing: 1962-05-07
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Granted: 1966-06-07
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:47
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/18; H01H9/182; H01H2009/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A SELF-ILLUMINATED ROOM THERMOSTAT, COMPRISING: AN ENCLOSURE HAVING A BASE MEMBER AND A COVER ON SAID BASE MEMBER HAVING A PORTION FORMED OF ELECTROLUMINESCENT MATERIAL, SAID PORTION OF SAID COVER BEING PROVIDED WITH AMBIENT TEMPERATURE INDICIA AND RESPONSE TEMPERATURE INDICIA; ADJUSTABLE TEMPERATURE RESPONSIVE MEANS IN SAID ENCLOSURE; AN ADJUSTABLE KNOB SUPPORTED ON SAID ELEMENT OVER SAID COVER AND OPERATIVELY CONNECTED TO SAID ADJUSTABLE TEMPERATURE RESPONSIVE MEANS, SAID ADJUSTMENT KNOB BEING COOPERABLE WITH SAID RESPONSE TEMPERATURE INDICIA ON SAID COVER; AMBIENT TEMPERATURE MEANS ON SAID COVER COOPERABLE WITH SAID AMBIENT TEMPERATURE INDICIA TO PROVIDE AN INDICATION OF ROOM TEMPERATURE; AND MEANS ON SAID ENCLOSURE FOR ELECTRICALLY ENERGIZING SAID ELECTROLUMINESCENT MATERIAL TO CAUSE SAID MATERIAL TO AFFORD LIGHT AND THEREBY FACILITATE ADJUSTMENT OF SAID ADJUSTMENT KNOB WITH RESPECT TO SAID RESPONSE TEMPERATURE INDICIA.
Claim 2
Dependent Claim
131 words
A SELF-ILLUMINATED ROOM THERMOSTAT, COMPRISING: AN ENCLOSURE HAVING A BASE MEMBER AND A COVER ON SAID BASE MEMBER HAVING A PORTION FORMED OF ELECTROLUMINESCENT MATERIAL, SAID PORTION OF SAID COVER BEING PROVIDED WITH AMBIENT TEMPERATURE INDICIA AND RESPONSE TEMPERATURE INDICIA; ADJUSTABLE TEMPERATURE RESPONSIVE MEANS IN SAID ENCLOSURE; AN ADJUSTABLE KNOB SUPPORTED ON SAID ELEMENT OVER SAID COVER AND OPERATIVELY CONNECTED TO SAID ADJUSTABLE TEMPERATURE RESPONSIVE MEANS, SAID ADJUSTMENT KNOB BEING COOPERABLE WITH SAID RESPONSE TEMPERATURE INDICIA ON SAID COVER; AMBIENT TEMPERATURE MEANS ON SAID COVER COOPERABLE WITH SAID AMBIENT TEMPERATURE INDICIA TO PROVIDE AN INDICATION OF ROOM TEMPERATURE; AND MEANS ON SAID ENCLOSURE FOR ELECTRICALLY ENERGIZING SAID ELECTROLUMINESCENT MATERIAL TO CAUSE SAID MATERIAL TO AFFORD LIGHT AND THEREBY FACILITATE ADJUSTMENT OF SAID ADJUSTMENT KNOB WITH RESPECT TO SAID RESPONSE TEMPERATURE INDICIA.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |