Patent US3403522A successfully refreshed from Google Patents.
US3403522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for low temperature dehydration of gases
Assignee: Individual
•
Filing: 1965-04-26
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Granted: 1968-10-01
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Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Walter L Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:01
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
IN APPARATUS FOR REMOVING WATER FROM A FLUID CONTAINING WATER AND HYDROCARBON IN PROPORTIONS TO FORM CRYSTALLINE HYDRATES OF SUCH HYDROCARBONS UPON REDUCTION OF THE TEMPERATURE OF THE FLUID BY EXPANSION OF THE SAME TO THE TEMPERATURE AT WHICH SUCH HYDRATES MAY FORM, AN EXPANSION VESSEL, FLUID FLOW CONTROL MEANS THROUGH WHICH SUCH FLUID MAY FLOW FROM A SOURCE OF SUCH FLUID AT A HIGHER PRESSURE INTO THE VESSEL AT A LOWER PRESSURE TO EXPAND THE FLUID AND REDUCE THE TEMPERATURE THEREOF, A BRINE RECEPTACLE, MEANS FOR INTRODUCING BRINE FROM SAID RECEP-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |