Patent US3130816A successfully refreshed from Google Patents.
Patent US2480094A successfully refreshed from Google Patents.
US2480094A
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Method of pumping liquid oxygen
Assignee: Air Products Inc
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Filing: 1945-07-16
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Granted: 1949-08-23
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Expires: 1965-07-16
Abstract
No abstract record available.
Inventors
- 👤 Carl R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:35
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04406; F25J3/04412; F17; F17C; F17C5/00; F17C5/06; F17C9/00; F17C9/02; F25J3/04006; F25J3/04078; F25J3/0409; F25J3/04151; F25J3/04187; F25J3/0423; F25J3/04763; F25J3/04866; F25J2200/00; F25J2200/50; F25J2200/52; F25J2235/00; F25J2235/02
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) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |