Patent US3208667A successfully refreshed from Google Patents.
US3208667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor
Assignee: Whirlpool Corp
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Filing: 1963-07-19
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Granted: 1965-09-28
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Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 Carl E Boettcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:17
CPC Classifications
F; F25; F25B; F25B31/00; F25B31/02; F25B31/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
APPARATUS FOR COMPRESSING REFRIGERANT GAS, COMPRISING: FIRST HOUSING MEANS DEFINING A PRESSURE SPACE; COMPRESSOR MEANS IN SAID FIRST HOUSING MEANS FOR COMPRESSING SAID REFRIGERANT GAS; SECOND HOUSING MEANS SPACED FROM SAID FIRST HOUSING MEANS TO DEFINE A PASSAGE THEREBETWEEN; MEANS DEFINING A LUBRICATING OIL SUMP IN SAID PRESSURE SPACE; THIRD HOUSING MEANS CLOSING SAID FIRST AND SECOND HOUSING MEANS AND INCLUDING A CHAMBER IN COMMUNICATION WITH SAID COMPRESSOR MEANS; CONDUIT MEANS FOR CONDUCTING SAID REFRIGERANT GAS TO SAID PASSAGE; AND MEANS FOR CONDUCTING SAID REFRIGERANT GAS FROM
Claim 2
Dependent Claim
87 words
APPARATUS FOR COMPRESSING REFRIGERANT GAS, COMPRISING: FIRST HOUSING MEANS DEFINING A PRESSURE SPACE; COMPRESSOR MEANS IN SAID FIRST HOUSING MEANS FOR COMPRESSING SAID REFRIGERANT GAS; SECOND HOUSING MEANS SPACED FROM SAID FIRST HOUSING MEANS TO DEFINE A PASSAGE THEREBETWEEN; MEANS DEFINING A LUBRICATING OIL SUMP IN SAID PRESSURE SPACE; THIRD HOUSING MEANS CLOSING SAID FIRST AND SECOND HOUSING MEANS AND INCLUDING A CHAMBER IN COMMUNICATION WITH SAID COMPRESSOR MEANS; CONDUIT MEANS FOR CONDUCTING SAID REFRIGERANT GAS TO SAID PASSAGE; AND MEANS FOR CONDUCTING SAID REFRIGERANT GAS FROM
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |