Patent US4534315A successfully refreshed from Google Patents.
US4534315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal litter container
Assignee: BASF Catalysts LLC
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Filing: 1983-08-29
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Granted: 1985-08-13
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Expires: 2003-08-29
Abstract
Abstract An animal litter container has a receptacle containing a lower layer of moisture-absorbent material covered by a liquid-permeable upper layer of particulate material which is relatively moisture-impervious. The lower layer may be segregated from the upper layer by a liquid-permeable barrier effective to reduce the emanation of odors from the lower layer.
Inventors
- 👤 William J. Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:35
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0107
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
An animal litter container comprising (a) a receptacle containing a lower layer of moisture-absorbent solid material covered by a liquid-permeable upper layer of moisture-impervious particulate material, the upper layer being coextensive with and contiguous to the lower layer, and (b) a foraminous liquid-permeable barrier means disposed coextensively with the upper layer and lower layer and positioned between the lower layer and the top of the upper layer, said barrier means comprising an odor abatement means comprised of a liquid and vapor-impermeable material which is perforated and thereby rendered liquid-permeable, and is effective to reduce the emanation of odors from the lower layer.
Claim 2
Dependent Claim
102 words
An animal litter container comprising (a) a receptacle containing a lower layer of moisture-absorbent solid material covered by a liquid-permeable upper layer of moisture-impervious particulate material, the upper layer being coextensive with and contiguous to the lower layer, and (b) a foraminous liquid-permeable barrier means disposed coextensively with the upper layer and lower layer and positioned between the lower layer and the top of the upper layer, said barrier means comprising an odor abatement means comprised of a liquid and vapor-impermeable material which is perforated and thereby rendered liquid-permeable, and is effective to reduce the emanation of odors from the lower layer.
Claim 3
Dependent Claim
19 words
The litter container of claim 1 wherein the moisture-absorbent material in the lower layer comprises a particulate absorbent clay.
Claim 4
Dependent Claim
17 words
The litter container of claim 1 wherein the relatively moisture-impervious material of the upper layer is sand.
Claim 5
Dependent Claim
53 words
The litter container of claim 1 wherein the receptacle comprises a bottom and peripheral sidewalls extending therefrom to above the top of the upper layer, and further including a moisture-barrier lining the bottom of the receptacle and the peripheral sidewalls thereof and extending up to at least the top of said upper layer.
Claim 6
Dependent Claim
25 words
The litter container of claim 4 further comprising a removable, moisture-barrier wrapping means thereon for sealing the receptacle contents prior to use of the container.
Claim 7
Dependent Claim
49 words
The litter container of claim 1 wherein the receptacle includes a bottom which is of imperforate corrugated configuration and the lower layer comprises particulate material disposed on top of the corrugated bottom whereby the volume of moisture-absorbent material required to fill the receptacle to a given depth is reduced.
Claim 8
Dependent Claim
48 words
The litter container of claim 1 further comprising a receptacle having a bottom and peripheral sidewalls and containing therein the lower layer and upper layer, the receptacle being dimensioned and configured so as to permit an animal to enter therein and stand upon the upper layer of material.
Claim 9
Dependent Claim
38 words
The litter container of claim 1 further including a moisture-barrier material lining the bottom and peripheral sidewalls thereof and extending to at least the top of said upper layer, said barrier material comprising a separate, plastic film liner.
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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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |