Patent US2482304A successfully refreshed from Google Patents.
US2482304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of the constituents of gaseous mixtures
Assignee: Airco Inc
•
Filing: 1946-12-05
•
Granted: 1949-09-20
•
Expires: 1966-12-05
Abstract
No abstract record available.
Inventors
- 👤 Claude C Van Nuys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:33
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/028; F25J3/0285; F25J3/0204; F25J3/0219; F25J3/0252; F25J3/0257; F25J2210/00; F25J2210/20; F25J2215/00; F25J2215/32; F25J2215/34; F25J2215/36; F25J2270/00; F25J2270/42; Y; Y10; Y10S; Y10S62/00; Y10S62/923; Y10S62/925
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |