US2772545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefied gas pressurizing systems
Assignee: Air Products Inc
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Filing: 1952-05-13
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Granted: 1956-12-04
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Expires: 1972-05-13
Abstract
No abstract record available.
Inventors
- 👤 James J Shanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:25
CPC Classifications
F; F17; F17C; 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; F17C2205/00; F17C2205/01; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2205/0142; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/014; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2225/00; F17C2225/01; F17C2225/0107; F17C2225/0123; F17C2225/03; F17C2225/036; F17C2227/00; F17C2227/03; F17C2227/0302; F17C2227/0309; F17C2227/0311; F17C2227/0367; F17C2227/0388; F17C2227/0393; F25J2205/00; F25J2205/24; F25J2215/00; F25J2215/50; F25J2235/00; F25J2235/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US924141A
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DE344039C
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US1976336A
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GB469939A
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US2217467A
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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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |