Patent US3165147A successfully refreshed from Google Patents.
US3165147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature control of a confined space
Assignee: Phillips Petroleum Co
•
Filing: 1962-12-13
•
Granted: 1965-01-12
•
Expires: 1982-12-13
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Roof
- 👤 Marvin E Reinecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:10
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/26; G01N30/28; G01N30/30; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/20; G05D23/24; G01N2030/3084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF MAINTAINING THE INTERIOR OF AN INSULATED HOUSING AT A CONSTANT TEMPERATURE WHICH COMPRISES ADDING A CONSTANT AMOUNT OF HEAT TO THE INTERIOR OF SAID HOUSING BY MEANS OF A HEATING ELEMENT; COOLING A STREAM OF AIR; INTRODUCING SAID STREAM OF AIR TO THE INTERIOR OF SAID HOUSING; RECIRCULATING THE AIR IN SAID HOUSING; EXHAUSTING AIR FROM SAID HOUSING AT THE RATE IT IS INTRODUCED; CONTINUOUSLY SENSING THE TEMPERATURE OF THE INTERIOR OF SAID HOUSING; AND ADDING HEAT TO SAID AIR STREAM IN AN AMOUNT SUFFICIENT TO MAINTAIN THE SENSED TEMPERATURE OF THE INTERIOR OF SAID HOUSING CONSTANT.
Claim 2
Independent Claim
100 words
THE METHOD OF MAINTAINING THE INTERIOR OF AN INSULATED HOUSING AT A CONSTANT TEMPERATURE WHICH COMPRISES ADDING A CONSTANT AMOUNT OF HEAT TO THE INTERIOR OF SAID HOUSING BY MEANS OF A HEATING ELEMENT; COOLING A STREAM OF AIR; INTRODUCING SAID STREAM OF AIR TO THE INTERIOR OF SAID HOUSING; RECIRCULATING THE AIR IN SAID HOUSING; EXHAUSTING AIR FROM SAID HOUSING AT THE RATE IT IS INTRODUCED; CONTINUOUSLY SENSING THE TEMPERATURE OF THE INTERIOR OF SAID HOUSING; AND ADDING HEAT TO SAID AIR STREAM IN AN AMOUNT SUFFICIENT TO MAINTAIN THE SENSED TEMPERATURE OF THE INTERIOR OF SAID HOUSING CONSTANT.
References Cited (Backward Citations)
US1893666A
Cited
US2510952A
Cited
US2583906A
Cited
US2671643A
Cited
US2819590A
Cited
US2912832A
Cited
US3038318A
Cited
US3091445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |