Patent US5996534A successfully refreshed from Google Patents.
US5996534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Animal litter having the property of detecting urinary infection in felines
Assignee: PAVILLION BANK
•
Filing: 1997-06-25
•
Granted: 1999-12-07
•
Expires: 2017-06-25
Abstract
Abstract An animal litter comprised of a liquid absorbent aggregate impregnated with a litmus agent for indicating a urinary tract infection in felines.
Inventors
- 👤 Ralph J. Steckel
- 👤 Edward Eugene Hodges, III
- 👤 Herman Morris Weller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:06
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/015; A01K1/0152; A01K1/0154
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
33 words
Animal litter comprised of a liquid absorbent aggregate having a substantially neutral pH and impregnated with a litmus agent to indicate the presence of urinary tract infection in felines and other related species.
Claim 2
Dependent Claim
33 words
Animal litter comprised of a liquid absorbent aggregate having a substantially neutral pH and impregnated with a litmus agent to indicate the presence of urinary tract infection in felines and other related species.
Claim 3
Dependent Claim
29 words
The animal litter of claim 1 in which the liquid absorbent aggregate includes an expanded aggregate selected from the class consisting of perlite, vermiculite, herculite, rice hulls and zeolite.
Claim 4
Dependent Claim
32 words
The animal litter of claim 2 in which the aggregate has a substantially neutral pH and requires no inert carrier or pH neutralizing agent to maintain the animal litter's pH indicating properties.
Claim 5
Dependent Claim
34 words
The animal litter of claim 1 in which the litmus agent is a pH agent with an approximate activity range from pH 6.6 to pH 8.0 such as, but not limited to, sodium phenolsulfonephthalein.
Claim 6
Dependent Claim
35 words
The animal control litter of claim 3 in which the odor control agent is D-ODOR, the surfactant is an alkylphenol ethoxylate, the clumping agent is AgRho DR-2000 and the litmus material is a sodium phenolsulfonephthalein.
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) | 2002-12-06 | 2003-06-07 | 2003-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-06 | 2007-06-07 | 2007-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-06 | 2011-06-07 | 2011-12-07 | $7700.00 | Window Closed / Lapsed |