US2756199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of alcohol
Assignee: MERCHANTS DISTILLING Corp
•
Filing: 1952-02-28
•
Granted: 1956-07-24
•
Expires: 1972-02-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:34
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/001; B01D3/003
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
THE METHOD OF PURIFYING ETHYL ALCOHOL WHICH COMPRISES THE STEPS OF DISTILLING HIGH WINES CONTAINING SODIUM HYDROXIDE IN CONVENTIONAL PROPORTIONS IN A PLATE COLUMN WHILE CONTINUOUSLY INTRODUCING AMMONIUM HYDROXIDE TO THE STILL NEAR THE BOTTOM OF THE COLUMN AND WITHDRAWING ALCOHOL FROM THE COLUMN NEAR, BUT BELOW, THE TOP OF THE COLUMN.
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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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |