Patent US971978A successfully refreshed from Google Patents.
Patent US2822306A successfully refreshed from Google Patents.
US2822306A
Expired / Lapsed
US
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Aromatic and pleasant tasting de-nicotinized tobacco and method of producing same
Assignee: Dr Plate GmbH
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Filing: 1955-07-01
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Granted: 1958-02-04
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Expires: 1975-07-01
Abstract
No abstract record available.
Inventors
- 👤 Thienemann Heinz
- 👤 Krug Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:51
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD FOR THE PRODUCTION OF A TOBACCO PRODUCT FROM UNTREATED TOBACCO CONTAINING INSOLUBLE NICOTINE PHOSPHORIC ACID SALTS, COMPRISING THE STEPS OF FIRST QUANTITATIVELY DETERMINING THE CONTENT OF PHOSPHORIC ACID IN SAID UNTREATED TOBACCO, AND SUBSEQUENTLY TREATING SAID TOBACCO WITH A BASIC MATERIAL CAPABLE OF DISPLACING THE NICOTINE FROM THE SAID SALTS, THE AMOUNT OF SAID BASIC MATERIAL ADDED BEING SUBSTANTIALLY EQUAL TO THAT AMOUNT REQUIRED TO COMBINE IN STOICHIOMETRIC PROPORTION WITH THE PHOSPHORIC ACID IN SAID SALTS WHEREBY NICOTINE IS DISPLACED THEREFROM, AND THE REMOVAL OF NICOTINE SO DISPLACED FROM SAID TOBACCO.
Claim 2
Independent Claim
93 words
A METHOD FOR THE PRODUCTION OF A TOBACCO PRODUCT FROM UNTREATED TOBACCO CONTAINING INSOLUBLE NICOTINE PHOSPHORIC ACID SALTS, COMPRISING THE STEPS OF FIRST QUANTITATIVELY DETERMINING THE CONTENT OF PHOSPHORIC ACID IN SAID UNTREATED TOBACCO, AND SUBSEQUENTLY TREATING SAID TOBACCO WITH A BASIC MATERIAL CAPABLE OF DISPLACING THE NICOTINE FROM THE SAID SALTS, THE AMOUNT OF SAID BASIC MATERIAL ADDED BEING SUBSTANTIALLY EQUAL TO THAT AMOUNT REQUIRED TO COMBINE IN STOICHIOMETRIC PROPORTION WITH THE PHOSPHORIC ACID IN SAID SALTS WHEREBY NICOTINE IS DISPLACED THEREFROM, AND THE REMOVAL OF NICOTINE SO DISPLACED FROM SAID TOBACCO.
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |