Patent US5296272A successfully refreshed from Google Patents.
US4386579A
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Animal litter
Assignee: Alfa Pet Inc
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Filing: 1981-08-13
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Granted: 1983-06-07
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Expires: 2001-08-13
Abstract
Abstract An animal litter for absorbing and deodorizing animal waste material consisting of an absorbent soil and particulate cedar wherein the latter provides a discrete foundation for the soil, being in unbound, unmixed relationship thereto.
Inventors
- 👤 Angie Harsh
- 👤 Benjamin M. Schulein, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:29
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A01K1/0154; A01K1/0155
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
An animal litter consisting essentially of a soil selected from the group consisting of diatomaceous earth and clay, and natural, untreated cedar, said soil and said cedar being in unmixed and unbound relationship and presented in discrete strata, said soil stratum being disposed upon said cedar stratum in substantially complete covering relationship thereto, said soil stratum being relatively thicker than said cedar stratum, the cedar is of such particulate character as to militate against the formation of air pockets therein.
Claim 2
Dependent Claim
80 words
An animal litter consisting essentially of a soil selected from the group consisting of diatomaceous earth and clay, and natural, untreated cedar, said soil and said cedar being in unmixed and unbound relationship and presented in discrete strata, said soil stratum being disposed upon said cedar stratum in substantially complete covering relationship thereto, said soil stratum being relatively thicker than said cedar stratum, the cedar is of such particulate character as to militate against the formation of air pockets therein.
Claim 3
Dependent Claim
40 words
An animal litter as defined in claim 1 wherein the depth of said soil stratum is within the range of approximately 11/2" to 31/2", and the depth of the cedar stratum is within the range of approximately 1/4" to 1/2".
Claim 4
Dependent Claim
22 words
An animal litter as defined in claim 1 wherein the cedar is within a mesh size range of approximately 2 to 16.
Claim 5
Dependent Claim
82 words
For use with an animal litter comprising an absorbent soil selected from the group consisting of diatomaceous earth and clay, an agent for potentiating the effectiveness of said litter comprising natural, untreated cedar presented in stratum-forming condition and in underlying relationship to the soil, said cedar being in unbound and unmixed relationship with respect to the soil, and of such particulate character as to militate against the development of air pockets within the cedar stratum, said soil substantially completely covering said cedar.
Claim 6
Dependent Claim
82 words
For use with an animal litter comprising an absorbent soil selected from the group consisting of diatomaceous earth and clay, an agent for potentiating the effectiveness of said litter comprising natural, untreated cedar presented in stratum-forming condition and in underlying relationship to the soil, said cedar being in unbound and unmixed relationship with respect to the soil, and of such particulate character as to militate against the development of air pockets within the cedar stratum, said soil substantially completely covering said cedar.
Claim 7
Dependent Claim
23 words
A litter potentiating agent as defined in claim 4 wherein the cedar is within the mesh size range of approximately 2 to 16.
Claim 8
Independent Claim
85 words
The method of enhancing the effectiveness of absorbent soil as an animal litter comprising providing a stratum of natural, untreated cedar in particulate form upon a suitable receptacle, and distributing coveringly upon said cedar stratum an overlying discrete stratum of absorbent soil from the class consisting of diatomaceous earth and clay, said soil and said cedar being unmixed and unbound, said cedar being of such particulate character as to militate against the development of air pockets therein, and said soil substantially completely covering said cedar.
Claim 9
Independent Claim
85 words
The method of enhancing the effectiveness of absorbent soil as an animal litter comprising providing a stratum of natural, untreated cedar in particulate form upon a suitable receptacle, and distributing coveringly upon said cedar stratum an overlying discrete stratum of absorbent soil from the class consisting of diatomaceous earth and clay, said soil and said cedar being unmixed and unbound, said cedar being of such particulate character as to militate against the development of air pockets therein, and said soil substantially completely covering said cedar.
Claim 10
Dependent Claim
36 words
The method defined in claim 6 wherein the cedar is of particulate form being within the mesh size range of approximately 2 to 16, the depth of said cedar bed being no less than approximately 1/4".
Claim 11
Dependent Claim
25 words
The method as defined in claim 7 wherein the depth of the stratum of absorbent soil is within the range of approximately 11/2" to 31/2".
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) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |