Patent US3935862A successfully refreshed from Google Patents.
US3935862A
Expired / Lapsed
US
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Inhibition of conditions arising from microbial production of ammonia
Assignee: Personal Products Co
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Filing: 1974-06-12
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Granted: 1976-02-03
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Expires: 1994-06-12
Abstract
Abstract Methods, compositions and products are described which inhibit the development of undesirable conditions arising as a result of microbial formation of ammonia from urea in excreted urine. Amino acid compounds are employed.
Inventors
- 👤 Kenneth S. Kraskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
A; A61; A61Q; A61Q15/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61L; A61L15/00; A61L15/16; A61L15/20; A61L15/42; A61L15/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A disposable diaper comprising a thin, waterproof backing sheet and a thin, moisture permeable facing sheet and an absorbent core disposed between said facing and said backing sheets, said diaper containing on at least the upper portions, including the surface area of the absorbent core or moisture permeable facing sheet first to intercept urine in use, a means for inhibiting ammonia formation therein including an aminopolycarboxylic acid compound in an amount of at least 0.001 gm. per square inch.
Claim 2
Dependent Claim
79 words
A disposable diaper comprising a thin, waterproof backing sheet and a thin, moisture permeable facing sheet and an absorbent core disposed between said facing and said backing sheets, said diaper containing on at least the upper portions, including the surface area of the absorbent core or moisture permeable facing sheet first to intercept urine in use, a means for inhibiting ammonia formation therein including an aminopolycarboxylic acid compound in an amount of at least 0.001 gm. per square inch.
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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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |