US3141307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorption refrigeration apparatus
Assignee: MONTCALM Inc
•
Filing: 1962-04-12
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Granted: 1964-07-21
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Expires: 1982-04-12
Abstract
No abstract record available.
Inventors
- 👤 Lewis D Beardslee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:21
CPC Classifications
F; F25; F25B; F25B15/00; F25B15/02; F25B15/025; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
40 words
IN AN ABSORPTION REFRIGERATION APPARATUS OF THE CLASS DESCRIBED, INCLUDING A GENERATOR, A CONDENSER, AN EVAPORATOR AND AN OBSORBER: MEANS FOR CONTROLLING THE EVAPORATOR TEMPERATURE COMPRISING A RESERVIOR IN COMMUNICATION WITH THE CONDENSER NEAR ITS OUTLET END AND A DISPLACE-
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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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |