US3887603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Menthol-release compounds
Assignee: Philip Morris USA Inc
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Filing: 1973-07-30
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Granted: 1975-06-03
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Expires: 1993-07-30
Abstract
Abstract This invention relates to novel oligomers and polymers produced from monomer carbonate esters of menthol having the formula: Wherein: N 0 to 8 R and R1 are independently selected from the group consisting of aliphatic, alicyclic and aromatic hydrocarbons These compounds find particular use as methanol-release agents which will impart improved aroma, flavor, and taste effects to natural and reconstituted smoking products.
Inventors
- 👤 Jr Eric G S Rundberg
- 👤 Jr William R Johnson
- 👤 Harvey J Grubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:35
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
6 words
A COMPOUND HAVING THE CHEMICAL FORMULA:
Claim 2
Dependent Claim
6 words
A COMPOUND HAVING THE CHEMICAL FORMULA:
Claim 3
Dependent Claim
6 words
A compound having the chemical formula:
Claim 4
Dependent Claim
6 words
A compound having the chemical formula:
Claim 5
Dependent Claim
18 words
The compound of claim 1, wherein N, N2 and each N1 have values of from 0 to 2.
Claim 6
Dependent Claim
15 words
The compound of claim 2, wherein N, N2 and each N1 have values of 0.
Claim 7
Dependent Claim
15 words
The compound of claim 2, wherein M has a value of from 4 to 38.
Claim 8
Dependent Claim
16 words
The compound of claim 5, wherein N, N2 and each N1 l have values of 0.
Claim 9
Dependent Claim
21 words
A compound having a molecular weight between about 550 and about 30,000 and consisting essentially of polymeric units of the formula:
Claim 10
Dependent Claim
21 words
A compound having a molecular weight between about 550 and about 30,000 and consisting essentially of polymeric units of the formula:
Claim 11
Dependent Claim
15 words
The compound of claim 6, wherein the molecular weight is between about 1600 and 12,000.
Claim 12
Dependent Claim
16 words
The compound of claim 7, wherein each N has a value of from 0 to 2.
References Cited (Backward Citations)
US3419543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |