US2960834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of liquid oxygen from atmospheric air
Assignee: Garrett Corp
•
Filing: 1954-11-22
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Granted: 1960-11-22
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Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Patrick Elizabeth M Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:15
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04254; F25J3/0426; F25J3/04763; F25J3/04866; F25J3/04975; F25J3/04993; F25J2205/00; F25J2205/02; F25J2215/00; F25J2215/50; F25J2270/00; F25J2270/14; F25J2270/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |