US3861401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smokable tobacco substitute material and method
Assignee: Individual
•
Filing: 1973-03-08
•
Granted: 1975-01-21
•
Expires: 1993-03-08
Abstract
Abstract A smokable material formed by heating a cellulosic material, containing 3-15 percent by weight calcium and/or magnesium oxalate, at a temperature within the range of 275*-375*C for a time sufficient to effect a weight loss of the cellulosic material at least 60 percent.
Inventors
- 👤 Theodore S Briskin
- 👤 Inderjit H Sabherwal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:32
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/10; A24B15/16; A24B15/165
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
34 words
A smokable material as claimed in claim 1 in which the thermal reaction of the cellulosic material is carried out until the weight loss of cellulosic material is within the range of 60-75 percent.
Claim 2
Dependent Claim
26 words
A smokable material as claimed in claim 1 in which the alkaline earth metal salt is selected from the group consisting of calcium and magnesium oxalate.
Claim 3
Dependent Claim
28 words
A smokable material as claimed in claim 3 in which the calcium and magnesium oxalate are present in an amount within the range of 3-15 percent by weight.
Claim 4
Dependent Claim
24 words
A smokable material as claimed in claim 1 which includes a binder present in an amount within the range of 1-5 percent by weight.
Claim 5
Dependent Claim
29 words
A smokable material as claimed in claim 5 in which the binder is a water soluble binder selected from the group consisting of cellulose derivatives and water soluble gums.
Claim 6
Dependent Claim
21 words
A smokable material as claimed in claim 1 which includes a humectant in an amount up to 10 percent by weight.
Claim 7
Dependent Claim
29 words
A smokable material as claimed in claim 7 in which the humectant is present in an amount within the range of 1-10 percent by weight of the smokable material.
Claim 8
Dependent Claim
27 words
A smokable material as claimed in claim 7 in which the humectant is a polyhydric compound selected from the group consisting of glycerol, glycol, and polyhydric alcohol.
Claim 9
Dependent Claim
28 words
A smokable material as claimed in claim 1 which includes a mineralizing and ashing ingredient in an amount up to 10 percent by weight of the smokable material.
Claim 10
Dependent Claim
28 words
A smokable material as claimed in claim 10 in which the mineralizing and ashing ingredient is present in an amount within the range of 3-15 percent by weight.
Claim 11
Dependent Claim
36 words
A smokable material as claimed in claim 10 in which the mineralizing agent and ashing ingredient is selected from the group consisting of an alkali metal salt of a lower carboxylic acid, carbonate, bicarbonate and phosphate.
Claim 12
Dependent Claim
28 words
A smokable material as claimed in claim 12 in which the carboxylic acid is selected from the group consisting of oxalic acid, citric acid, pivalicacid and maleic acid.
Claim 13
Dependent Claim
25 words
A smokable material as claimed in claim 1 which includes a coloring agent for converting the dark gray cellulosic product to a rich brown color.
Claim 14
Dependent Claim
23 words
A smokable material as claimed in claim 14 in which the coloring agent comprises the reaction product of a calcium base with triquinonyl.
Claim 15
Dependent Claim
31 words
A smokable material as claimed in claim 1 which includes an organic amine in amount sufficient to adjust the pH of the smokable material to a pH of at least 8.
Claim 16
Dependent Claim
98 words
In the method of producing a smokable material comprising the steps of combining an alkaline earth metal salt of an organic hydroxy acid with a cellulosic material in an amount within the range of 3-15 percent by weight of the cellulosic material, exposing the cellulosic material in a non-combustible atmosphere to a temperature within the range of 275*-375*C for a time sufficient to effect a weight loss of at least 60 percent but not more than 75 percent of the cellulosic material, and then processing the thermally reacted cellulosic product to the form desired for the smokable material.
Claim 17
Dependent Claim
25 words
The method as claimed in claim 17 in which the Cellulosic material is exposed to the elevated temperature in a non-oxidizing atmosphere or under vacuum.
Claim 18
Dependent Claim
30 words
The method as claimed in claim 17 in which the alkaline earth metal salt of the organic hydroxy acid is selected from the group consisting of calcium and magnesium oxalate.
Claim 19
Dependent Claim
28 words
The method as claimed in claim 19 in which the salt is present in an amount within the range of 3-15 percent by weight of the cellulosic material.
Claim 20
Dependent Claim
38 words
The method as claimed in claim 17 which includes the step of coating the product of the thermal reaction with a coloring agent that converts the dark gray color of the thermal reaction product to a rich brown.
Claim 21
Dependent Claim
36 words
The method as claimed in claim 21 in which the coloring agent is formed by adding triquinonyl to the thermal reaction product for reaction with the calcium or magnesium salts present to form a brown-orange color.
Claim 22
Dependent Claim
38 words
The method as claimed in claim 21 in which the coloring agent is formed by a reaction between triquinonyl and a calcium or magnesium compound and then coating the colored reaction product onto the thermally reacted cellulosic material.
Claim 23
Dependent Claim
36 words
The method as claimed in claim 17 which includes the step of incorporating a binder with a thermally reacted cellulosic material in an amount within the range of 1-5 percent by weight of the cellulosic material.
Claim 24
Dependent Claim
17 words
The method as claimed in claim 24 in which the binder is sprayed onto the cellulosic material.
Claim 25
Dependent Claim
20 words
The method as claimed in claim 24 in which the binder is admixed for uniform distribution with the cellulosic material.
Claim 26
Dependent Claim
14 words
The method as claimed in claim 24 in which the binder is polyvinylene carbonate.
Claim 27
Dependent Claim
30 words
The method as claimed in claim 17 which includes the step of incorporating a humectant with the thermally reacted cellulosic material in an amount up to 5 percent by weight.
Claim 28
Dependent Claim
18 words
The method as claimed in claim 28 in which the humectant is a water soluble polyhydric organic compound.
Claim 29
Dependent Claim
27 words
The method as claimed in claim 28 in which the humectant is a compound selected from the group consisting of glycerol, a glycol and a polyhydric alcohol.
Claim 30
Dependent Claim
31 words
The method as claimed in claim 17 which includes the step of adding an ashing ingredient to the thermally reacted cellulosic material in an amount up to 30 percent by weight.
Claim 31
Dependent Claim
29 words
The method as claimed in claim 31 in which the ashing ingredient is added in an amount up to 6-30 percent by weight of the thermally reacted cellulosic material.
Claim 32
Dependent Claim
33 words
The method as claimed in claim 31 in which the ashing ingredient is selected from the group consisting of an alkali metal and ammonium salt of an organic acid, carbonate, bicarbonate and phosphate.
Claim 33
Dependent Claim
40 words
The method as claimed in claim 17 which includes the step of adjusting the pH of the smoke by the addition of an organic amine, ammonium salt or urea, in an amount to adjust the pH from 7 to 8.5.
Claim 34
Dependent Claim
25 words
The smokable material as claimed in claim 1 which includes natural tobacco products, tobacco extracts or reconstituted tobacco materials, in any percentage, form and shape.
Claim 35
Dependent Claim
16 words
The smokable material as claimed in claim 1 which includes additives for casing, flavoring and aroma.
Claim 36
Dependent Claim
22 words
The smokable material as claimed in claim 36 which includes nicotinic, chlorogenic, caffeic or quinic acids or their derivatives as flavoring agents.
Claim 37
Dependent Claim
15 words
The smokable material as claimed in claim 36 which includes menthol as a flavoring agent.
Claim 38
Dependent Claim
21 words
A cigar filler, cigarette filler, cigar wrapper, cigarette wrapper and pipe filler comprising the smokable material as claimed in claim 1.
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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |