Patent US3635221A successfully refreshed from Google Patents.
US3635221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushable fabric
Assignee: Kimberly Clark Corp
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Filing: 1969-08-13
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Granted: 1972-01-18
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Expires: 1989-08-13
Abstract
Abstract A sanitary napkin designed for disposal in conventional toilet systems. A conventional pad is enclosed in a wrapper comprising a web of nonwoven fibers discontinuously bonded with a watersensitive adhesive that is relatively more soluble in cold water than in warm water. The napkin is used with supplementary support means.
Inventors
- 👤 John F Champaigne Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:35
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/505; A61F13/56; A61F13/66; A61F13/68; A61F13/74; A61F13/76
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
19 words
The device of claim 1 wherein the adhesive is relatively more soluble in cold water than in warm water.
Claim 2
Dependent Claim
15 words
The device of claim 2 wherein tabs extend from both ends of the absorbent pad.
Claim 3
Dependent Claim
14 words
The device of claim 1 wherein the adhesive forms a series of discrete lines.
Claim 4
Dependent Claim
11 words
The device of claim 1 wherein the adhesive is polyvinyl alcohol.
Claim 5
Dependent Claim
29 words
The device of claim 3 wherein the polyvinyl alcohol has a percent hydrolysis of from about 79 to 82 and a viscosity of from about 22 to 26 c.p.s.
Claim 6
Dependent Claim
35 words
The device of claim 6 wherein the adhesive is present in an amount up to about 10 percent by weight of the fibers and comprises up to about 40 percent of the wrapper surface area.
Claim 7
Dependent Claim
31 words
The device of claim 1 wherein the support means comprises a panty having a waistband, leg openings and crotch area defined by front and back seams extending transversely of the garment.
Claim 8
Dependent Claim
37 words
The device of claim 3 wherein the support means comprises an elongated body portion with one end broader than the other and being formed with slots and support straps having ends which are received in the slots.
References Cited (Backward Citations)
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US3327708A
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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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |