US3447332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air separation employing separated nitrogen as heat exchange fluid in liquid oxygen pump jacket
Assignee: Individual
•
Filing: 1967-07-13
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Granted: 1969-06-03
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Expires: 1987-07-13
Abstract
No abstract record available.
Inventors
- 👤 Genrikh Maxovich Basin
- 👤 Ilya Vladimirovich Gorenshtein
- 👤 Mark Eleazarovich Lemberg
- 👤 Semen Grigorievich Linetsky
- 👤 Anatoly Eliseevich Myasoed
- 👤 Jakov Benediktovich Zanis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:56
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04151; F25J3/04187; F25J3/04218; F25J3/04006; F25J3/04078; F25J3/0409; F25J3/04157; F25J3/04248; F25J3/04284; F25J3/0429; F25J3/04296; F25J3/04406; F25J3/04412; F25J3/04763; F25J3/04866; F25J2205/00; F25J2205/30; F25J2205/34; F25J2235/00; F25J2235/50; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |