Patent US2750753A successfully refreshed from Google Patents.
US2750753A
Expired / Lapsed
US
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Self-powered liquid oxygen pump and vaporizer
Assignee: Individual
•
Filing: 1955-09-14
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Granted: 1956-06-19
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Expires: 1975-09-14
Abstract
No abstract record available.
Inventors
- 👤 Richard W Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:05
CPC Classifications
F; F04; F04B; F04B23/00; F04B23/02; F04B23/021; F04B23/023; F01; F01L; F01L23/00; F04B53/00; F04B53/16; F04B53/162; F04B53/164; F04B9/00; F04B9/08; F04B9/12; F04B9/129; F04B9/131; F04B9/133; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
APPARATUS FOR CONVERTING LOW PRESSURE LIQUID TO HIGH PRESSURE GAS, COMPRISING AN ENGINE HAVING GAS INLET AND OUTLET PORTS, A WARMING COIL CONNECTED TO SAID ENGINE FOR SUPPLY OF HIGH PRESSURE ENGINE ACTUATING GASES THERETO, A PUMP OPERATED BY SAID ENGINE TO SUPPLY LIQUID TO SAID ENGINE WARMING COIL, A RECEIVER FOR STORAGE OF GASES UNDER PRESSURE, CONDUITS BETWEEN THE ENGINE EXHAUST OUTLETS AND
Claim 2
Dependent Claim
64 words
APPARATUS FOR CONVERTING LOW PRESSURE LIQUID TO HIGH PRESSURE GAS, COMPRISING AN ENGINE HAVING GAS INLET AND OUTLET PORTS, A WARMING COIL CONNECTED TO SAID ENGINE FOR SUPPLY OF HIGH PRESSURE ENGINE ACTUATING GASES THERETO, A PUMP OPERATED BY SAID ENGINE TO SUPPLY LIQUID TO SAID ENGINE WARMING COIL, A RECEIVER FOR STORAGE OF GASES UNDER PRESSURE, CONDUITS BETWEEN THE ENGINE EXHAUST OUTLETS AND
References Cited (Backward Citations)
GB375479A
Cited
US2467413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |