Patent US2764532A successfully refreshed from Google Patents.
US2764532A
Expired / Lapsed
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Process for producing anhydrous hydrogen chloride gas
Assignee: Individual
•
Filing: 1951-03-30
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Granted: 1956-09-25
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Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 Cornelius A Rauh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:58
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
IN A PROCESS FOR THE PRODUCTION OF DRY HYDROGEN CHLORIDE GAS THE STEPS OF REFRIGERATING TO 10* F. AN AQUEOUS SOLUTION OF AT LEAST 31.5 WEIGHT PRESENT OF HYDROGEN CHLORIDE AND PASSING THE REFRIGERATED SOLUTION THROUGH A DRYING TOWER IN INTIMATE CONTACT WITH AND COUNTERCURRENTLY TO A STREAM OF MOIST HYDROGEN CHLORIDE GAS TO PRODUCE A STREAM OF DRIED HYDROGEN CHLORIDE GAS.
References Cited (Backward Citations)
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US1897996A
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US1906467A
Cited
US2227953A
Cited
US2437290A
Cited
US2463188A
Cited
US2463453A
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US2553557A
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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) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |