US2777296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid pumping and vaporizing systems
Assignee: Air Products Inc
•
Filing: 1952-08-13
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Granted: 1957-01-15
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Expires: 1972-08-13
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Schilling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:10
CPC Classifications
F; F17; F17C; F17C7/00; F17C7/02; F17C7/04; F17C9/00; F17C9/02; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04006; F25J3/04078; F25J3/0409; F25J3/04406; F25J3/04412; F25J3/04763; F25J3/04769; F25J3/04781; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/014; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2225/00; F17C2225/01; F17C2225/0107; F17C2225/0123; F17C2227/00; F17C2227/01; F17C2227/0121; F17C2227/03; F17C2227/0367; F17C2227/0388; F17C2227/0393; F25J2215/00; F25J2215/50; F25J2235/00; F25J2235/04; F25J2290/00; F25J2290/62
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |