Patent US2709496A successfully refreshed from Google Patents.
US2709496A
Expired / Lapsed
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Gas drier
Assignee: ExxonMobil Oil Corp
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Filing: 1951-08-30
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Granted: 1955-05-31
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Expires: 1971-08-30
Abstract
No abstract record available.
Inventors
- 👤 Baker Charles Ovid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:21
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; B62; B62D; B62D5/00; B62D5/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
155 words
A GAS DRIER COMPRISING IN COMBINATION AN OUTER CASING, A THIN METAL LINER WITHIN SAID CASING FORMING A CHAMBER, SAID LINER BEING SEPARATED FROM THE WALL OF SAID CASING AND FORMING AN ANNULUS BETWEEN SAID CASING AND SAID LINER, A PLURALITY OF METAL STIFFENING RINGS SECURED TO THE INSIDE WALL OF SAID LINER, A PLURALITY OF EXPANSION RINGS FORMED INTEGRAL WITH SAID LINER, GAS INLET MEANS LEADING TO SAID CHAMBER FROM WITHOUT SAID CASING, GAS OUTLET MEANS LEADING FROM SAID CHAMBER TO WITHOUT SAID CASING, HEAT INSULATING MATERIAL WITHIN SAID ANNULUS BETWEEN SAID CASING AND SAID LINER, MEANS FOR PERMITTING A CONSTANT FLOW OF GAS FROM SAID ANNULUS TO WITHOUT SAID CASING, MEANS FOR SUPPLYING GAS UNDER PRESSURE TO SAID ANNULUS, VALVE MEANS CONNECTED TO SAID LAST MENTIONED MEANS, AND MEANS CONNECTED TO SAID VALVE MEANS FOR OPERATING SAID VALVE MEANS IN RESPONSE TO A PREDETERMINED GAS PRESSURE DIFFERENTIAL BETWEEN SAID CHAMBER AND SAID ANNULUS.
References Cited (Backward Citations)
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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) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |