US3021683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas liquefiers
Assignee: The Hymatic Engineering Co Ltd
•
Filing: 1960-01-18
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Granted: 1962-02-20
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Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Mcinroy John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:40
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0257; F25J1/0275; F25J1/0276; F25B; F25B9/00; F25B9/02; F25B2309/00; F25B2309/02; F25B2309/022; Y; Y10; Y10S; Y10S62/00; Y10S62/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A GAS LIQUEFIER WHICH OPERATES AT TEMPERATURES BELOW -100*C. COMPRISING, IN COMBINATION, A HEAT EXCHANGER, A SUPPORTING PLATFORM FROM WHICH SUCH HEAT EXCHANGER IS SUSPENDED, AN INLET FOR THE GAS TO BE LIQUEFIED EXTENDING THROUGH SAID PLATFORM, A THERMALLY INSULATED CONTAINER
Claim 2
Dependent Claim
41 words
A GAS LIQUEFIER WHICH OPERATES AT TEMPERATURES BELOW -100*C. COMPRISING, IN COMBINATION, A HEAT EXCHANGER, A SUPPORTING PLATFORM FROM WHICH SUCH HEAT EXCHANGER IS SUSPENDED, AN INLET FOR THE GAS TO BE LIQUEFIED EXTENDING THROUGH SAID PLATFORM, A THERMALLY INSULATED CONTAINER
References Cited (Backward Citations)
US1177192A
Cited
US2242173A
Cited
US2576610A
Cited
US2590731A
Cited
US2645099A
Cited
US2760356A
Cited
US2791105A
Cited
US2968160A
Cited
US2895303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |