US3231703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room thermostat comprising a pair of bimetal actuators
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1962-11-05
•
Granted: 1966-01-25
•
Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Darwin R Grahl
- 👤 Walter F Ruffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:35
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/56; G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/2754
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A WALL THERMOSTAT COMPRISING A BASE; A MANUALLY ADJUSTABLE ROTATABLE POST CARRIED ON SAID BASE; A FIRST SWITCH ACTUATING BIMETAL CARRIED ON AND COMPLETELY SUPPORTED BY SAID POST; AND A SECOND SWITCH-ACTUATING BIMETAL CARRIED ON AND COMPLETLY SUPPORTED BY SAID POST; SAID BIMETALS BEING UNCONNECTED EXCEPT THROUGH THE POST SO THAT THEIR RESPECTIVE SWITCHES ARE ACTUATED AT DIFFERENT TEMPERATURES.
Claim 2
Dependent Claim
59 words
A WALL THERMOSTAT COMPRISING A BASE; A MANUALLY ADJUSTABLE ROTATABLE POST CARRIED ON SAID BASE; A FIRST SWITCH ACTUATING BIMETAL CARRIED ON AND COMPLETELY SUPPORTED BY SAID POST; AND A SECOND SWITCH-ACTUATING BIMETAL CARRIED ON AND COMPLETLY SUPPORTED BY SAID POST; SAID BIMETALS BEING UNCONNECTED EXCEPT THROUGH THE POST SO THAT THEIR RESPECTIVE SWITCHES ARE ACTUATED AT DIFFERENT TEMPERATURES.
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |