US4437429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal litter
Assignee: Mars Fishcare North America Inc
•
Filing: 1981-08-04
•
Granted: 1984-03-20
•
Expires: 2001-08-04
Abstract
Abstract An improved animal litter is disclosed which extends the life of clay containing litter two to three times by the use of zeolites, such as clinoptilolite.
Inventors
- 👤 Joel Goldstein
- 👤 Albert Abrevaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A01K1/0154
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
32 words
A method for reducing ammonia odor from sorptive, non-colloidal granular aluminosilicate containing animal litter which comprises adding uncalcined hydrated zeolite to said litter in an amount effective to reduce the ammonia odor.
Claim 2
Independent Claim
32 words
A method for reducing ammonia odor from sorptive, non-colloidal granular aluminosilicate containing animal litter which comprises adding uncalcined hydrated zeolite to said litter in an amount effective to reduce the ammonia odor.
Claim 3
Dependent Claim
10 words
The method of claim 1 wherein said zeolite is clinoptilolite.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said zeolite is in the form of chips.
Claim 5
Dependent Claim
40 words
The method of claim 1 wherein said zeolite is added in the form of a zeolite containing pad comprising a top layer of sorptive sheet material, a bottom layer of sorptive sheet material and said zeolite disposed between said layers.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein said sorptive, non-colloidal granular aluminosilicate comprises clay.
Claim 7
Dependent Claim
11 words
The method of claim 5 wherein said clay comprises fuller's earth.
Claim 8
Dependent Claim
36 words
The method of claim 1 wherein said effective amount of hydrated zeolite is between about 10 weight percent and about 60 weight percent of the total weight of said zeolite and said sorptive, non-colloidal granular aluminosilicate.
Claim 9
Dependent Claim
32 words
The method of claim 7 wherein said amount is between about 15 weight percent and about 25 weight percent of the total weight of said zeolite and said sorptive, non-colloidal granular aluminosilicate.
Claim 10
Dependent Claim
20 words
An animal litter comprising sorptive, non-colloidal granular aluminosilicate and an amount of uncalcined hydrated zeolite effective to reduce ammonia odor.
Claim 11
Dependent Claim
20 words
An animal litter comprising sorptive, non-colloidal granular aluminosilicate and an amount of uncalcined hydrated zeolite effective to reduce ammonia odor.
Claim 12
Dependent Claim
37 words
The animal litter of claim 9 wherein said effective amount of hydrated zeolite is between about 10 weight percent and about 60 weight percent of the total weight of said zeolite and said sorptive, non-colloidal granular aluminosilicate.
Claim 13
Dependent Claim
15 words
The animal litter of claim 9 wherein said zeolite is in the form of chips.
Claim 14
Dependent Claim
41 words
The animal litter of claim 9 wherein said zeolite is added in the form of a zeolite containing pad comprising a top layer of sorptive sheet material, a bottom layer of sorptive sheet material and said zeolite disposed between said layers.
Claim 15
Dependent Claim
14 words
The animal litter of claim 9 wherein said sorptive, non-colloidal granular aluminosilicate comprises clay.
Claim 16
Dependent Claim
12 words
The animal litter of claim 13 wherein said clay comprises fuller's earth.
Claim 17
Dependent Claim
11 words
The animal litter of claim 9 wherein said zeolite is clinoptilolite.
Claim 18
Dependent Claim
31 words
The animal litter of claim 15 wherein said amount is between about 15 weight percent and 25 weight percent of the total weight of zeolite and the sorptive, non-colloidal granular aluminosilicate.
Claim 19
Dependent Claim
33 words
A pad for use in conjunction with animal litter comprising a top layer of sorptive sheet material and a bottom layer of sorptive sheet material, and uncalcined hydrated zeolite disposed between said layers.
Claim 20
Dependent Claim
33 words
A pad for use in conjunction with animal litter comprising a top layer of sorptive sheet material and a bottom layer of sorptive sheet material, and uncalcined hydrated zeolite disposed between said layers.
Claim 21
Dependent Claim
10 words
The pad of claim 17 wherein said zeolite is clinoptilolite.
References Cited (Backward Citations)
US2649759A
Cited
US2848976A
Cited
US2895873A
Cited
US3029783A
Cited
US3284273A
Cited
US3154052A
Cited
US3735734A
Cited
US3776188A
Cited
US3898324A
Cited
US4059543A
Cited
US4009684A
Cited
US4085704A
Cited
US4256728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-20 | 1987-09-19 | 1988-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-20 | 1991-09-19 | 1992-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-20 | 1995-09-19 | 1996-03-20 | $7700.00 | Window Closed / Lapsed |