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US3828786A Expired / Lapsed US ⏱️ 0.0 years remaining

Sanitary napkin

Assignee: Individual
•
Filing: 1973-05-21
•
Granted: 1974-08-13
•
Expires: 1993-05-21
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Abstract

Abstract My sanitary napkin has a filler of sponge rubber which is enclosed in a cover whose top piece covers the top of the filler and which has an elongated opening that registers with an elongated recess formed in the top of the filler. The bottom piece of the cover, which is treated with a waterproofing agent, is in two halves and the inner edges of these two halves overlap each other. The outer edges of both of the top and bottom pieces are stitched together so as to enclose the filler. A special liner covers the floor and side walls of the elongated recess in the top of the filler and this liner has tabs that are sewn to the undersurface of the top piece. The ends of the cover extend beyond the ends of the filler and are provided with snaps for attachment to a sanitary belt. The cover ends have transversely extending slots disposed near the ends of the filler and when the sanitary napkin is worn with panties, the outermost cover ends are looped back on themselves and inserted through the slots so as to underlie the napkin, and the snaps nearest the filler are used to attach the napkin to the panties.

Inventors

  • 👤 J Cervantes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 10:29
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/472; A61F13/47236; A61F13/47245; A61F13/51; A61F13/511; A61F13/515; A61F13/56; A61F13/64; A61F13/53; A61F2013/530802; A61F2013/5694

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 155 words
A sanitary napkin comprising: a. a cover having top and bottom portions secured together along their perimeters with the bottom portion being made waterproof, said cover having a narrow middle portion with outwardly flared front and rear portions; and b. a filler receivable in said cover and having a narrow middle portion occupying the narrow middle portion of said cover and having outwardly flared front and rear portions occupying the outwardly flared front and rear portions of said cover; c. the outwardly flared front and rear portions of said cover having inwardly extending edges lying beyond said outwardly flared front and rear portions and forming wedge-shaped integral front and rear tongues for the cover, each tongue having a transverse slot therein disposed near the widest part of the tongue and permitting the outer end of each tongue to be doubled back on itself with the end of the tongue being threaded through the adjacent slot.
Claim 2
Dependent Claim 155 words
A sanitary napkin comprising: a. a cover having top and bottom portions secured together along their perimeters with the bottom portion being made waterproof, said cover having a narrow middle portion with outwardly flared front and rear portions; and b. a filler receivable in said cover and having a narrow middle portion occupying the narrow middle portion of said cover and having outwardly flared front and rear portions occupying the outwardly flared front and rear portions of said cover; c. the outwardly flared front and rear portions of said cover having inwardly extending edges lying beyond said outwardly flared front and rear portions and forming wedge-shaped integral front and rear tongues for the cover, each tongue having a transverse slot therein disposed near the widest part of the tongue and permitting the outer end of each tongue to be doubled back on itself with the end of the tongue being threaded through the adjacent slot.
Claim 3
Dependent Claim 61 words
The combination as set forth in claim 1: and in which a. the bottom portion of said cover is divided into two longitudinally extending halves with their adjacent longitudinal edges overlapping each other slightly; and b. an adhesive tape securing together the overlapping edges of the two halves of the bottom portion of said cover that lie between said transverse slots.

References Cited (Backward Citations)

US1967859A Cited
US2331355A Cited
US2551663A Cited
US2731014A Cited
US2852026A Cited
US3364931A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-08-12 1978-02-11 1978-08-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-12 1982-02-11 1982-08-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-12 1986-02-11 1986-08-13 $7700.00 Window Closed / Lapsed

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