Patent US3892846A successfully refreshed from Google Patents.
US3892846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal litter resistant to ammonia odor formation
Assignee: Honeywell International Inc
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Filing: 1972-09-12
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Granted: 1975-07-01
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Expires: 1992-09-12
Abstract
Abstract Animal bedding materials, animal litter, training pads and the like, treated with an hydroxamic acid or hydroxamic acid salt in amount sufficient to inhibit the decomposition of urea to ammonia when wetted with urine.
Inventors
- 👤 Joseph S Wortham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:31
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/069; A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A61; A61L; A61L9/00; A61L9/01
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
42 words
AN ANIMAL LITER COMPRISING A URINE-ABSORBENT MATERIAL CONTAINING A SALT SELECTED FROM THE GROUP CONSISTING OF AL, ZN, SN, CA AND MG OF AN HYDROXAMIC ACID, IN AN AMOUNT SUFFICIENT TO INHIBIT THE DECOMPOSITION OF UREA TO AMMONIA WHEN WETTED BY URINE.
Claim 2
Dependent Claim
42 words
AN ANIMAL LITER COMPRISING A URINE-ABSORBENT MATERIAL CONTAINING A SALT SELECTED FROM THE GROUP CONSISTING OF AL, ZN, SN, CA AND MG OF AN HYDROXAMIC ACID, IN AN AMOUNT SUFFICIENT TO INHIBIT THE DECOMPOSITION OF UREA TO AMMONIA WHEN WETTED BY URINE.
Claim 3
Dependent Claim
22 words
The animal litter of claim 1 in which the hydroxamic acid is selected from the group consisting of those having the formula
Claim 4
Dependent Claim
12 words
The animal litter of claim 2 wherein R has 2-10 carbon atoms.
Claim 5
Dependent Claim
35 words
The animal litter of claim 1 wherein the hydroxamic acid is selected from the group consisting of aceto-, propiono-, butyro-, amylo-, capro-, heptylo-, octano-, nonylo-, caprino-, undecano-, phenylaceto-, benzo-, salicylo-, adipo-, stearo- and nicotino-hydroxamic acid.
Claim 6
Dependent Claim
13 words
The animal litter of claim 4 wherein the hydroxamic acid is cinnamohydroxamic acid.
Claim 7
Dependent Claim
13 words
The animal litter of claim 4 wherein the hydroxamic acid is benzohydroxamic acid.
Claim 8
Dependent Claim
29 words
The animal litter of claim 1 wherein the amount of the salt of the hydroxamic acid used in the animal litter is insufficient for substantial effectiveness as a bactericide.
Claim 9
Dependent Claim
29 words
The animal litter of claim 1 wherein the amount of hydroxamic acid used in the animal litter ranges between about 0.005 to 0.00002 gram per 25 grams of litter.
Claim 10
Dependent Claim
12 words
The animal litter of claim 1 wherein the animal litter is clay.
Claim 11
Dependent Claim
15 words
The animal litter of claim 1 wherein the animal litter is comprised of wood particles.
Claim 12
Dependent Claim
12 words
The animal litter of claim 1 wherein the litter comprises absorbent pads.
Claim 13
Dependent Claim
11 words
The animal litter of claim 4 wherein the salt is Al.
Claim 14
Dependent Claim
11 words
The animal litter of claim 4 wherein the salt is Zn.
Claim 15
Dependent Claim
11 words
The animal litter of claim 4 wherein the salt is Sn.
Claim 16
Dependent Claim
11 words
The animal litter of claim 4 wherein the salt is Ca.
Claim 17
Dependent Claim
11 words
The animal litter of claim 4 wherein the salt is Mg.
Claim 18
Dependent Claim
11 words
The animal litter of claim 5 wherein the salt is Al.
References Cited (Backward Citations)
US2597457A
Cited
US3427316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |