US4505939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tar-depleted liquid smoke treated food casing
Assignee: Viskase Corp
•
Filing: 1983-11-30
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Granted: 1985-03-19
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Expires: 2003-11-30
Abstract
Abstract A tar-depleted aqueous liquid smoke composition with smoke coloring and smoke flavoring capability and a tubular food casing with the composition applied on a surface thereof.
Inventors
- 👤 Herman S. Chiu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:07
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/0013; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1324
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
104 words
A tar-depleted liquid smoke treated tubular food casing having a tar-depleted liquid smoke coating which is derived from a tar-containing liquid smoke and which provides said casing with an absorptive index of at least about 0.2 at 340 nm. wave length, and which also provides said casing with a liquid smoke extract having an absorbance at 210 nm. wave length which is no more than about 60% of the absorbance for a similar extract from an identical casing having a comparable coating of said tar-containing liquid smoke sufficient to provide substantially the same absorptive index as said tar-depleted liquid smoke treated tubular food casing.
Claim 2
Dependent Claim
104 words
A tar-depleted liquid smoke treated tubular food casing having a tar-depleted liquid smoke coating which is derived from a tar-containing liquid smoke and which provides said casing with an absorptive index of at least about 0.2 at 340 nm. wave length, and which also provides said casing with a liquid smoke extract having an absorbance at 210 nm. wave length which is no more than about 60% of the absorbance for a similar extract from an identical casing having a comparable coating of said tar-containing liquid smoke sufficient to provide substantially the same absorptive index as said tar-depleted liquid smoke treated tubular food casing.
Claim 3
Dependent Claim
20 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which said casing is formed of cellulose.
Claim 4
Dependent Claim
23 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which said casing is formed of cellulose without fiber reinforcement.
Claim 5
Dependent Claim
64 words
A tar-depleted liquid smoke treated gel stock tubular food casing according to claim 3, in which said tar-containing liquid smoke has a total acid content of at least about 10 weight %, and said tar-depleted liquid smoke coating has a haze value which is no more than 80% of the haze value for said identical casing with a coating of said tar-containing liquid smoke.
Claim 6
Dependent Claim
64 words
A tar-depleted liquid smoke treated gel stock tubular food casing according to claim 3, in which said tar-containing liquid smoke has a total acid content of at least about 10 weight %, and said tar-depleted liquid smoke coating has a haze value which is no more than 70% of the haze value for said identical casing with a coating of said tar-containing liquid smoke.
Claim 7
Dependent Claim
43 words
A tar-depleted liquid smoke treated tubular food casing according to claim 3, in which said tar-depleted liquid smoke has a total acid content of at least about 10 weight %, and said tar-depleted liquid smoke coating is applied to the casing outer surface.
Claim 8
Dependent Claim
37 words
A tar-depleted liquid smoke treated tubular food casing according to claim 3, in which said tar-depleted liquid smoke coating is applied to the casing outer surface and a peelability coating is applied to the casing inner surface.
Claim 9
Dependent Claim
23 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which said casing is formed of cellulose with fiber reinforcement.
Claim 10
Dependent Claim
22 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which said absorptive index is at least about 0.4.
Claim 11
Dependent Claim
45 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which said absorbance of the casing extract is no more than about 30% of the absorbance of the casing extract for said identical casing with a coating of said tar-containing liquid smoke.
Claim 12
Dependent Claim
48 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which said absorptive index is at least about 0.3, and said absorbance is no more than about 30% of the absorbance for the extract from said identical casing coated with the tar-containing liquid smoke coating.
Claim 13
Dependent Claim
39 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which the phenol content of said tar-depleted liquid smoke coating is less than one-half of the phenol content of said comparable coating of tar-containing liquid smoke.
Claim 14
Dependent Claim
68 words
A tar-depleted liquid smoke treated tubular food casing according to claim 1, in which the ultraviolet light transmittance of the so-treated casing extract at 210 nm wave length is at least four times the light transmittance of the similar extract of said identical casing treated with said tar-containing liquid smoke so as to provide substantially the same absorptive index as said tar-depleted liquid smoke treated tubular food casing.
Claim 15
Dependent Claim
94 words
A tar-depleted liquid smoke treated gel stock tubular food casing formed of cellulose without fiber reinforcement, having a tar-depleted liquid smoke coating which is derived from tar-containing liquid smoke having a total acid content of at least about 10 weight % and which is applied on a casing surface in sufficient quantity to provide an absorptive index of at least about 0.2 at 340 nm. wave length, with said tar-depleted liquid smoke coating providing a haze value which is no more than the haze value for an identical casing without said liquid smoke coating.
Claim 16
Dependent Claim
94 words
A tar-depleted liquid smoke treated gel stock tubular food casing formed of cellulose without fiber reinforcement, having a tar-depleted liquid smoke coating which is derived from tar-containing liquid smoke having a total acid content of at least about 10 weight % and which is applied on a casing surface in sufficient quantity to provide an absorptive index of at least about 0.2 at 340 nm. wave length, with said tar-depleted liquid smoke coating providing a haze value which is no more than the haze value for an identical casing without said liquid smoke coating.
Claim 17
Dependent Claim
32 words
A tar-depleted liquid smoke treated tubular food casing according to claim 14, in which said haze value is less than the haze value for said identical casing without said liquid smoke coating.
Claim 18
Dependent Claim
22 words
A tar-depleted liquid smoke treated tubular food casing according to claim 14, in which said absorptive index is at least about 0.3.
Claim 19
Dependent Claim
26 words
A tar-depleted liquid smoke treated tubular food casing according to claim 14, in which said tar-depleted liquid smoke coating is applied to the casing outer surface.
Claim 20
Dependent Claim
37 words
A tar-depleted liquid smoke treated tubular food casing according to claim 14, in which said tar-depleted liquid smoke coating is applied to the casing outer surface and a peelability coating is applied to the casing inner surface.
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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) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |