US2665240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of obtaining anhydrous hydrogen chloride
Assignee: Diamond Shamrock Corp
•
Filing: 1951-06-16
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Granted: 1954-01-05
•
Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 Chester C Brumbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:49
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF PRODUCING ANHYDROUS HC1 WHICH INCLUDES THE STEPS OF SUBJECTING AN AQUEOUS SOLUTION OF HCI CONTAINING AT LEAST 20% OF HCI BY WEIGHT, TO A PRESSURE WITHIN THE RANGE OF 15-250 P.S.I. GAUGE, HEATING SAID SOLUTION TO THE BOILING POINT THEREOF AT THE PRESSURE PREVAILING IN THE SYSTEM TO VAPORIZE A MIXTURE OF HCI AND WATER FROM SAID SOLUTION, COOLING THE VAPORIZED MIXTURE TO A TEMPERATURE SUBSTANTIALLY WITHIN
Claim 2
Independent Claim
70 words
A METHOD OF PRODUCING ANHYDROUS HC1 WHICH INCLUDES THE STEPS OF SUBJECTING AN AQUEOUS SOLUTION OF HCI CONTAINING AT LEAST 20% OF HCI BY WEIGHT, TO A PRESSURE WITHIN THE RANGE OF 15-250 P.S.I. GAUGE, HEATING SAID SOLUTION TO THE BOILING POINT THEREOF AT THE PRESSURE PREVAILING IN THE SYSTEM TO VAPORIZE A MIXTURE OF HCI AND WATER FROM SAID SOLUTION, COOLING THE VAPORIZED MIXTURE TO A TEMPERATURE SUBSTANTIALLY WITHIN
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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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |