US3174294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxygen dispensing
Assignee: Airco Inc
•
Filing: 1958-12-19
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Granted: 1965-03-23
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Expires: 1978-12-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:03
CPC Classifications
B; B64; B64D; B64D10/00; F; F17; F17C; F17C9/00; F17C9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF DISPENSING OXYGEN OF UNIFORM DENSITY FROM A CONTAINER HOLDING A SUPPLY CONSISTING ESSENTIALLY OF OXYGEN IN THE LIQUID AND GASEOUS PHASES, SAID CONTANIER, THE WALL OF WHICH IS IMPERMEABLE TO THE PASSAGE OF LIQUID AND GASEOUS OXYGEN, TO BE SUBJECTED TO AN ENVIRONMENT IN WHICH THE FORCE OF GRAVITY NORMALLY ACTING TO SEPARATE THE LIQUID AND GASEOUS PHASES IS ABSENT, SAID METHOD COMPRISING SUBJECTING THE OXYGEN TO A MAGNETIC FIELD TO PREFERENTIALLY MAINTAIN A MASS OF LIQUID PHASE OXYGEN SEPARATELY FROM THE GASEOUS PHASE, AND DELIVERING A SEPARATE SINGLE PHASE OF THE OXYGEN FROM THE CONTAINER.
Claim 2
Independent Claim
99 words
A METHOD OF DISPENSING OXYGEN OF UNIFORM DENSITY FROM A CONTAINER HOLDING A SUPPLY CONSISTING ESSENTIALLY OF OXYGEN IN THE LIQUID AND GASEOUS PHASES, SAID CONTANIER, THE WALL OF WHICH IS IMPERMEABLE TO THE PASSAGE OF LIQUID AND GASEOUS OXYGEN, TO BE SUBJECTED TO AN ENVIRONMENT IN WHICH THE FORCE OF GRAVITY NORMALLY ACTING TO SEPARATE THE LIQUID AND GASEOUS PHASES IS ABSENT, SAID METHOD COMPRISING SUBJECTING THE OXYGEN TO A MAGNETIC FIELD TO PREFERENTIALLY MAINTAIN A MASS OF LIQUID PHASE OXYGEN SEPARATELY FROM THE GASEOUS PHASE, AND DELIVERING A SEPARATE SINGLE PHASE OF THE OXYGEN FROM THE CONTAINER.
References Cited (Backward Citations)
US1056043A
Cited
US1273929A
Cited
US1364136A
Cited
US1575587A
Cited
US2657542A
Cited
US2873582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |