US3081605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigeration systems
Assignee: Carrier Corp
•
Filing: 1960-12-27
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Granted: 1963-03-19
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis H Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:02
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/04; F25B43/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PURGE UNIT FOR REMOVING RELATIVELY NONCONDENSIBLE GASES FROM A REFRIGERATION SYSTEM, SAID PURGE UNIT COMPRISING A PLURALITY OF ADSORBENT MEDIA HAVING A PREFERENTIAL AFFINITY FOR CONDENSIBLE GASES, MEANS TO PASS GAS WITHDRAWN FROM A PORTION FROM SAID REFRIGERATION SYSTEM INTO CONTACT WITH SAID ADSORBENT MEDIA IN SAID PURGE UNIT TO ABSORB SAID CONDENSIBLE GASES WHILE PASSING SAID
Claim 2
Dependent Claim
58 words
A PURGE UNIT FOR REMOVING RELATIVELY NONCONDENSIBLE GASES FROM A REFRIGERATION SYSTEM, SAID PURGE UNIT COMPRISING A PLURALITY OF ADSORBENT MEDIA HAVING A PREFERENTIAL AFFINITY FOR CONDENSIBLE GASES, MEANS TO PASS GAS WITHDRAWN FROM A PORTION FROM SAID REFRIGERATION SYSTEM INTO CONTACT WITH SAID ADSORBENT MEDIA IN SAID PURGE UNIT TO ABSORB SAID CONDENSIBLE GASES WHILE PASSING SAID
References Cited (Backward Citations)
US1729081A
Cited
US2765634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |