US2955673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for dehydrating gas
Assignee: KAHN AND CO Inc
•
Filing: 1958-08-18
•
Granted: 1960-10-11
•
Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Starrett C Kennedy
- 👤 Robert S Sheldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:00
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; Y; Y10; Y10S; Y10S55/00; Y10S55/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1798733A
Cited
US2765868A
Cited
FR795497A
Cited
FR50651E
Cited
US2316251A
Cited
US2322603A
Cited
US2440326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |