US2940271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature fractionation of natural gas components
Assignee: Fluor Corp
•
Filing: 1959-03-24
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Granted: 1960-06-14
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Expires: 1979-03-24
Abstract
No abstract record available.
Inventors
- 👤 Steven B Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:37
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0238; F25J3/0204; F25J3/0209; F25J3/0233; F25J3/0257; F25J3/028; F25J3/029; F25J2200/00; F25J2200/02; F25J2200/40; F25J2200/50; F25J2200/74; F25J2200/80; F25J2205/00; F25J2205/02; F25J2205/04; F25J2220/00; F25J2220/60; F25J2220/64; F25J2270/00; F25J2270/02; F25J2270/88; Y; Y10; Y10S; Y10S62/00; Y10S62/927
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |