US2594512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid pumping system
Assignee: Air Products Inc
•
Filing: 1949-05-06
•
Granted: 1952-04-29
•
Expires: 1969-05-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:43
CPC Classifications
F; F17; F17C; F17C5/00; F17C5/02; F17C5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21189E
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US1161937A
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FR668512A
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DE495795C
Cited
US2033094A
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US2007251A
Cited
US2332711A
Cited
US2480093A
Cited
US2440216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |