Patent US3174291A successfully refreshed from Google Patents.
US3174291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature regulating apparatus
Assignee: Whirlpool Corp
•
Filing: 1961-04-07
•
Granted: 1965-03-23
•
Expires: 1981-04-07
Abstract
No abstract record available.
Inventors
- 👤 William R Crawford
- 👤 Warren R Danielson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F25B21/04; F25D; F25D31/00; F25D31/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
MEANS FOR CONTROLLING THE ENERGIZATION OF A THERMOELECTRIC HEATING AND COOLING MEANS COMPRISING: MEANS FOR PROVIDING ELECTRICAL ENERGY TO THE THERMOELECTRIC MEANS; THERMOSTATIC MEANS ARRANGED TO BE RESPONSIVE TO A TEMPERATURE PRODUCED BY THE THERMOELECTERIC MEANS; AND MEANS CONTROLLING THE POWER DELIVERY MEANS, SAID CONTROLLING MEANS BEING ACTUATED SERIATIM TO EFFECT SERIATIM DIFFERENT RATES OF ELECTRICAL ENERGY DELIVERY TO THE THERMOELECTRIC MEANS.
Claim 2
Dependent Claim
62 words
MEANS FOR CONTROLLING THE ENERGIZATION OF A THERMOELECTRIC HEATING AND COOLING MEANS COMPRISING: MEANS FOR PROVIDING ELECTRICAL ENERGY TO THE THERMOELECTRIC MEANS; THERMOSTATIC MEANS ARRANGED TO BE RESPONSIVE TO A TEMPERATURE PRODUCED BY THE THERMOELECTERIC MEANS; AND MEANS CONTROLLING THE POWER DELIVERY MEANS, SAID CONTROLLING MEANS BEING ACTUATED SERIATIM TO EFFECT SERIATIM DIFFERENT RATES OF ELECTRICAL ENERGY DELIVERY TO THE THERMOELECTRIC MEANS.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |