US5006339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-viral wipe
Assignee: Unilever Patent Holdings BV
•
Filing: 1989-07-19
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Granted: 1991-04-09
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Expires: 2009-07-19
Abstract
Abstract Packaged sheet-like article for wiping surfaces, said article comprising a highly absorbent material, capable of absorbing and retaining a hydrophilic liquid, and of reversibly releasing at least some of the liquid on application of hand pressure, and further containing an anti-viral agent. The highly absorbent material is contained between two sheets of material, at least one of them being permeable to the liquid.
Inventors
- 👤 Robert A. Bargery
- 👤 Gordon C. Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:18
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/34; A61; A61L; A61L2/00; A61L2/16; A61L2/18; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/674; Y10T442/678
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
93 words
Package containing a sheet-like article for wiping surfaces, said article comprising an absorbent material capable of absorbing and retaining a hydrophilic liquid, and of reversibly releasing at least some of the liquid on application of hand pressure, said absorbent material being the polymerization product of an internal phase emulsion having an aqueous internal phase and a continuous phase comprising one or more polymerizable hydrophobic monomers, said article further containing an anti-viral agent, whereby the absorbent material is contained between two sheets of material, at least one of them being permeable to the liquid.
Claim 2
Dependent Claim
93 words
Package containing a sheet-like article for wiping surfaces, said article comprising an absorbent material capable of absorbing and retaining a hydrophilic liquid, and of reversibly releasing at least some of the liquid on application of hand pressure, said absorbent material being the polymerization product of an internal phase emulsion having an aqueous internal phase and a continuous phase comprising one or more polymerizable hydrophobic monomers, said article further containing an anti-viral agent, whereby the absorbent material is contained between two sheets of material, at least one of them being permeable to the liquid.
Claim 3
Dependent Claim
14 words
Package according to claim 1, wherein the absorbent material is a sulphonated polymerization product.
Claim 4
Dependent Claim
15 words
Package according to claim 1, wherein the sulphonated polymerization product is in a non-collapsed form.
Claim 5
Dependent Claim
20 words
Package according to claim 1, wherein the anti-viral agent is a compound which generates a hypohalite on contact with water.
Claim 6
Dependent Claim
10 words
Package according to claim 1, wherein the hypohalite is hypochlorite.
Claim 7
Dependent Claim
14 words
Package according to claim 1, wherein the anti-viral agent is an alkali metal dichloro-isocyanurate.
Claim 8
Dependent Claim
28 words
Package according to claim 1, wherein the absorbent material is contained between two sheets of material, at least one of them being permeable to the liquid and hydrophilic.
Claim 9
Dependent Claim
21 words
Package according to claim 1, wherein at least one of the surfaces of the sheet-like articles is coated with abrasive particles.
Claim 10
Dependent Claim
13 words
Package according to claim 1, wherein the antiviral agent is sodium dichloroisocyanurate dihydrate.
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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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |