US4071616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch air freshener gels
Assignee: SC Johnson and Son Inc
•
Filing: 1977-02-14
•
Granted: 1978-01-31
•
Expires: 1997-02-14
Abstract
Abstract An air freshener gel comprising 2.5-15% amylose, 0.25-30% perfume, up to 5% pigment, and the balance water.
Inventors
- 👤 Daniel Richard Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:09
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/048; C; C08; C08L; C08L3/00; C08L3/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
61 words
A slow diffusing air freshener gel composition comprising about 2.5-15% by weight amylose, about 0.25-30% by weight perfume, up to about 5% by weight pigment, and the balance water, said amylose being present in the form of amylose starch having an amylose content of at least 50% by weight amylose, said gel having a gel strength of at least 75 grams.
Claim 2
Dependent Claim
61 words
A slow diffusing air freshener gel composition comprising about 2.5-15% by weight amylose, about 0.25-30% by weight perfume, up to about 5% by weight pigment, and the balance water, said amylose being present in the form of amylose starch having an amylose content of at least 50% by weight amylose, said gel having a gel strength of at least 75 grams.
Claim 3
Dependent Claim
26 words
The composition of claim 1 wherein said amylose is present in the form of amylose starch having an amylose content of about 90-100% by weight amylose.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein said amylose is selected from the group consisting of corn amylose and potato amylose.
Claim 5
Dependent Claim
18 words
The composition of claim 1 wherein said composition contains from about 4 to about 9% by weight amylose.
Claim 6
Dependent Claim
16 words
The composition of claim 1 wherein said composition contains from about 0.5 to about 5% perfume.
Claim 7
Dependent Claim
16 words
The composition of claim 1 wherein said composition contains from about 0.1 to about 1.0% pigment.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein said gel strength is at least 250 grams.
Claim 9
Dependent Claim
62 words
A self-supporting slow diffusing air freshener gel composition comprising about 4-9% by weight amylose, said amylose being present in the form of amylose starch having an amylose content of about 70 to about 100% by weight; about 0.5-5% by weight perfume; about 0.1-1% by weight pigment with the balance being water, said gel having a gel strength of at least 250 grams.
Claim 10
Dependent Claim
62 words
A self-supporting slow diffusing air freshener gel composition comprising about 4-9% by weight amylose, said amylose being present in the form of amylose starch having an amylose content of about 70 to about 100% by weight; about 0.5-5% by weight perfume; about 0.1-1% by weight pigment with the balance being water, said gel having a gel strength of at least 250 grams.
Claim 11
Dependent Claim
14 words
The composition of claim 8 wherein said composition contains about 4-7% by weight amylose.
Claim 12
Dependent Claim
20 words
The composition of claim 8 wherein said amylose is selected from the group consisting of corn amylose and potato amylose.
Claim 13
Dependent Claim
13 words
The composition of claim 8 wherein said composition contains from about 0.5-2% perfume.
Claim 14
Dependent Claim
26 words
The composition of claim 8 wherein said amylose is present in the form of amylose starch having an amylose content of about 90-100% by weight amylose.
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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) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |