Patent US2935856A successfully refreshed from Google Patents.
US2935856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas treating apparatus and method
Assignee: Individual
•
Filing: 1955-04-05
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Granted: 1960-05-10
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Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 Gifford William Ellsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:43
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF DRYING A GAS COMPRISING PASSING A GAS FIRST UPWARDLY IN A FIRST PATH AND THEN DOWNWARDLY IN A COUNTERFLOWING SECOND PATH IN HEAT EXCHANGE RELATION WITH SAID FIRST PATH, ONE OF SAID PATHS BEING SUBSTANTIALLY WITHIN THE OTHER OF SAID PATHS, PASSING A REFRIGERANT IN HEAT EXCHANGE RELATION TO SAID GAS WHILE SAID GAS IS TRAVELING ALONG SAID FIRST PATH, AND MAINTAINING SAID RE-
Claim 2
Independent Claim
67 words
THE METHOD OF DRYING A GAS COMPRISING PASSING A GAS FIRST UPWARDLY IN A FIRST PATH AND THEN DOWNWARDLY IN A COUNTERFLOWING SECOND PATH IN HEAT EXCHANGE RELATION WITH SAID FIRST PATH, ONE OF SAID PATHS BEING SUBSTANTIALLY WITHIN THE OTHER OF SAID PATHS, PASSING A REFRIGERANT IN HEAT EXCHANGE RELATION TO SAID GAS WHILE SAID GAS IS TRAVELING ALONG SAID FIRST PATH, AND MAINTAINING SAID RE-
References Cited (Backward Citations)
FR715143A
Cited
DE642878C
Cited
US2178807A
Cited
GB500389A
Cited
US2209661A
Cited
US2239848A
Cited
US2633338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |