Patent US4625171A successfully refreshed from Google Patents.
Patent US3888254A successfully refreshed from Google Patents.
US3888254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin
Assignee: Individual
•
Filing: 1974-02-11
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Granted: 1975-06-10
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Expires: 1994-02-11
Abstract
Abstract The sanitary napkin of the present invention includes a pad, a sheet of liquid repellant material having an opening therein, and a sheet of absorbent material. The opening formed in the sheet of liquid repellent material is slightly smaller in dimension than the pad. The sheet of liquid repellent material is placed on the sheet of absorbent material. The pad is placed on the sheet of liquid repellent material over the opening thereof and thereby in contact with the sheet of absorbent material, which contacting position constitutes the body contact side of the sanitary napkin. The sheets of absorbent material and liquid repellent material are enveloped about the pad with the liquid repellent sheet disposed between the pad and the sheet of absorbent material. Opposite edges of the two sheets overlap one another on a garment facing side of the pad and end tab portions of the two sheets extend beyond the ends of the pad. The overlapping sheets of the end tab portions and the edges of the two sheets are sealed together. Adhesive is applied to the garment facing side of the end tab portions for attachment of the napkin to a garment. A method of making such a sanitary napkin includes the steps of placing a sheet of liquid repellent material having an opening therein on a sheet of absorbent material and placing the body facing side of a pad on the sheet of liquid repellent material confronting the opening thereof and in contact with the sheet of absorbent material, and enveloping the sheet of absorbent material and the sheet of liquid repellent material about the pad.
Inventors
- 👤 Laurel A Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:22
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/514; A61F13/51474; A61F13/51478; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4755; A61F13/511; A61F13/53; A61F13/534; A61F13/56; A61F13/58; A61F13/51401; A61F2013/51409; A61F2013/53445; A61F2013/583; A61F2013/586
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
153 words
A sanitary napkin comprising: a. an absorbent pad having a body-facing side and a garmentfacing side; b. a layer of liquid repellent material having an opening therein and being disposed about said pad with said opening positioned confronting the body-facing side of said pad and with opposite end portions thereof overlapping one another over the garment-facing side of said pad; and c. a layer of absorbent material disposed around said pad with said layer of liquid repellent material disposed between said pad and said layer of absorbent material, said layer of absorbent material being approximately coextensive with said layer of liquid repellent material and opposite end portions of said layer of absorbent material and said layer of liquid repellent material overlapping one another and being coextensive with the garment-facing side of said pad, said overlapping end portions of said layer of absorbent material and said layer of liquid repellent material being secured together.
Claim 2
Dependent Claim
153 words
A sanitary napkin comprising: a. an absorbent pad having a body-facing side and a garmentfacing side; b. a layer of liquid repellent material having an opening therein and being disposed about said pad with said opening positioned confronting the body-facing side of said pad and with opposite end portions thereof overlapping one another over the garment-facing side of said pad; and c. a layer of absorbent material disposed around said pad with said layer of liquid repellent material disposed between said pad and said layer of absorbent material, said layer of absorbent material being approximately coextensive with said layer of liquid repellent material and opposite end portions of said layer of absorbent material and said layer of liquid repellent material overlapping one another and being coextensive with the garment-facing side of said pad, said overlapping end portions of said layer of absorbent material and said layer of liquid repellent material being secured together.
Claim 3
Dependent Claim
32 words
A sanitary napkin as claimed in claim 1, and comprising adhesive means on a garment-facing surface of said layer of absorbent material for permitting the attachment of the napkin to a garment.
Claim 4
Dependent Claim
71 words
A sanitary napkin as claimed in claim 1 wherein said layer of liquid repellent material and said layer of absorbent material extend beyond the ends of said pad to form tab portions and said overlapping end portions of said layer of liquid repellent material and said layer of absorbent material being secured to one another along the width of said tab portions and along the length of said overlapping end portions.
Claim 5
Dependent Claim
42 words
A sanitary napkin as claimed in claim 3 and comprising adhesive means supported by said tab portions in a direction facing in the same direction as the garment-facing side of said pad for permitting the attachment of the napkin to a garment.
Claim 6
Dependent Claim
31 words
A sanitary napkin as claimed in claim 1 wherein said opening in said layer of liquid repellent material is of a dimension which is less than the dimension of said pad.
Claim 7
Independent Claim
155 words
A method of making a sanitary napkin and the like comprising the steps of: a. providing an opening in a sheet of liquid repellent material; b. enveloping said sheet of liquid repellent material about an absorbent pad with the opening therein confronting the body-facing side of said pad and with opposite end portions thereof overlapping one another over the garment-facing side of said pad; c. enveloping a sheet of absorbent material around said pad with said sheet of liquid repellent material between said pad and said sheet of absorbent material, said sheet of absorbent material being approximately coextensive with said sheet of liquid repellent material and opposite end portions of said sheet of absorbent material and said sheet of liquid repellent material overlapping one another and coextending with the garment-facing side of said pad; and d. securing together said overlapping end portions of said sheet of absorbent material and said sheet of liquid repellent material.
Claim 8
Independent Claim
155 words
A method of making a sanitary napkin and the like comprising the steps of: a. providing an opening in a sheet of liquid repellent material; b. enveloping said sheet of liquid repellent material about an absorbent pad with the opening therein confronting the body-facing side of said pad and with opposite end portions thereof overlapping one another over the garment-facing side of said pad; c. enveloping a sheet of absorbent material around said pad with said sheet of liquid repellent material between said pad and said sheet of absorbent material, said sheet of absorbent material being approximately coextensive with said sheet of liquid repellent material and opposite end portions of said sheet of absorbent material and said sheet of liquid repellent material overlapping one another and coextending with the garment-facing side of said pad; and d. securing together said overlapping end portions of said sheet of absorbent material and said sheet of liquid repellent material.
Claim 9
Dependent Claim
90 words
A method of making a napkin as defined in claim 6 including the step of extending said sheet of liquid repellent material and said sheet of absorbent material beyond the ends of said pad to form tab portions and further comprising the step of securing overlapping end portions of said sheet of liquid repellent material and said sheet of absorbent material to one another along the width of said tab portions and along the overlapping end portions of said sheet of absorbent material and said sheet of liquid repellent material.
Claim 10
Dependent Claim
40 words
A method of making a sanitary napkin as defined in claim 7 and comprising the step of applying adhesive to the outer surfaces of said tab portions which face in the same direction as said garmentfacing side of said pad.
Claim 11
Dependent Claim
34 words
A method of making a sanitary napkin as defined in claim 8 and comprising the step of crimping said tab portions before the application of adhesive to the outer surfaces of said tab portions.
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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) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |