US3046750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-purifying stage for gas liquefaction plants
Assignee: Linde GmbH
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Filing: 1959-08-03
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Granted: 1962-07-31
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Becker Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:02
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0219; C; C01; C01B; C01B4/00; F25J3/0228; F25J3/0252; F25J3/0276; F25J3/08; F25J2200/00; F25J2200/02; F25J2210/00; F25J2210/20; F25J2215/00; F25J2215/02; F25J2215/10; F25J2220/00; F25J2220/90; F25J2270/00; F25J2270/02; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2760352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |