US3407146A
Expired / Lapsed
US
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Process for the recovery of hydrogennitrogen mixtures with reduced carbon-monoxide content
Assignee: Linde GmbH
•
Filing: 1965-01-21
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Granted: 1968-10-22
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Becker Rudolf
- 👤 Karwat Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:29
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/025; F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0219; F25J3/0223; F25J3/0228; F25J3/0276; F25J2200/00; F25J2200/02; F25J2200/74; F25J2210/00; F25J2210/12; F25J2210/14; F25J2210/42; F25J2250/00; F25J2250/10; F25J2270/00; F25J2270/12; F25J2270/42; F25J2270/90; F25J2270/904; Y; Y10; Y10S; Y10S62/00; Y10S62/92; Y10S62/931; Y10S62/934
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) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |