Patent US2985549A successfully refreshed from Google Patents.
US2985549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low toxicity tobacco
Assignee: Individual
•
Filing: 1957-03-27
•
Granted: 1961-05-23
•
Expires: 1977-03-27
Abstract
No abstract record available.
Inventors
- 👤 Rosenthal Walter
- 👤 Jr John Staige Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:54
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/24; A24B15/241; A24B15/243; A24B15/28; A24B15/30; A24B15/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
SMOKING TOBACCO IN A FORM READY TO BE SMOKED AND WHICH, DURING THE SMOKING THEREOF, PRODUCES SMOKE OF SUBSTANTIALLY REDUCED NICOTINE CONTENT RESULTING FROM THE TREATMENT OF THE TOBACCO, PRIOR TO ITS BEING SMOKED, WITH A SUFFICIENT AMOUNT OF A DRY, GASEOUS LOWER ALKYL HALIDE ALKYLATING AGENT SELECTED FROM THE GROUP CONSISTING OF METHYL AND ETHYL BROMIDES AND CHLORIDES UNTIL A SUBSTANTIAL PROPORTION OF THE NICOTINE IN THE TOBACCO CHEMICALLY REACTS WITH THE ALKYL HALIDE TO FORM A COMPLETELY ORGANIC NICOTINE DERIVATIVE CONTAINING A BOND BETWEEN THE PYRIDINE NITROGEN ATOM AND A CARBON ATOM OF THE ALKYL RADICAL OF THE ALKYLATING AGENT AND BEING COMPLETELY COMBUSTIBLE, SAID NICOTINE DERIVATIVE HAVING SMOKING PROPERTIES MORE FAVORABLE THAN NICOTINE.
Claim 2
Dependent Claim
116 words
SMOKING TOBACCO IN A FORM READY TO BE SMOKED AND WHICH, DURING THE SMOKING THEREOF, PRODUCES SMOKE OF SUBSTANTIALLY REDUCED NICOTINE CONTENT RESULTING FROM THE TREATMENT OF THE TOBACCO, PRIOR TO ITS BEING SMOKED, WITH A SUFFICIENT AMOUNT OF A DRY, GASEOUS LOWER ALKYL HALIDE ALKYLATING AGENT SELECTED FROM THE GROUP CONSISTING OF METHYL AND ETHYL BROMIDES AND CHLORIDES UNTIL A SUBSTANTIAL PROPORTION OF THE NICOTINE IN THE TOBACCO CHEMICALLY REACTS WITH THE ALKYL HALIDE TO FORM A COMPLETELY ORGANIC NICOTINE DERIVATIVE CONTAINING A BOND BETWEEN THE PYRIDINE NITROGEN ATOM AND A CARBON ATOM OF THE ALKYL RADICAL OF THE ALKYLATING AGENT AND BEING COMPLETELY COMBUSTIBLE, SAID NICOTINE DERIVATIVE HAVING SMOKING PROPERTIES MORE FAVORABLE THAN NICOTINE.
References Cited (Backward Citations)
US685059A
Cited
US1963471A
Cited
US2080179A
Cited
US2310538A
Cited
US2298532A
Cited
US2429567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |