US2663166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for pumping liquefied gases
Assignee: Air Products Inc
•
Filing: 1949-08-22
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Granted: 1953-12-22
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Expires: 1969-08-22
Abstract
No abstract record available.
Inventors
- 👤 Carl R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:55
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/044; F17; F17C; F17C5/00; F17C5/06; F17C9/00; F17C9/02; F25J3/04006; F25J3/04078; F25J3/0409; F25J3/04406; F25J3/04412; F25J3/04763; F25J3/04866; F25J2200/00; F25J2200/50; F25J2200/52; F25J2200/70; F25J2215/00; F25J2215/50; F25J2235/00; F25J2235/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE495795C
Cited
US1976388A
Cited
US2321445A
Cited
US2480094A
Cited
US2480093A
Cited
US2464891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |