Patent US1187795A successfully refreshed from Google Patents.
US3575174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin
Assignee: Personal Products Co
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Filing: 1969-07-11
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Granted: 1971-04-20
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Expires: 1989-07-11
Abstract
Abstract A sanitary napkin which is formed in either a curved or flat configuration, tapered toward its rearward end, and is maintained in its shaped configuration by deep embossed channels impressed through the cover and into the core of the napkin to compression bond the two components together. The deep embossed channels are positioned near the lateral and end edges on the top surface of the napkin and at the rearward end on the bottom surface of the napkin.
Inventors
- 👤 Ernest Mogor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/472; A61F13/47218; A61F13/47272; A61F13/475; A61F13/4751; A61F13/4756; A61F13/4758; A61F13/51; A61F13/511; A61F13/51121; A61F13/53; A61F13/534; A61F13/537; A61F13/539; A61F13/56; A61F13/64; A61F13/15577; A61F2013/15821; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530131; A61F13/53708; A61F2013/53721; A61F2013/5694
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
193 words
A sanitary napkin comprising a core of absorbent fibrous material and a fluid pervious cover overlying at least the top surface of said core, said cover and said core being compression bonded together on the top of said core along relatively narrow embossed lines spaced inwardly from the lateral and end edges of said napkin, said embossed lines forming a dense channel extending longitudinally near each of the lateral edges of said napkin and a dense channel extending transversely near each of the end edges of said napkin, said longitudinally extending channels and transversely extending channels being connected together at their respective ends and being impressed to a depth of at least one-half the thickness of said napkin, and a deeply embossed wedge-shaped channel impressed from the bottom of said napkin at the rearward end thereof, the apex of said wedge-shaped channel being positioned medially and directed towards the forward end of said napkin and extending a distance less than half of the length of said napkin, said wedge-shaped channel forming a correspondingly shaped and positioned ridge on the top of said napkin whereby the napkin is narrowed at the rearward end thereof.
Claim 2
Dependent Claim
193 words
A sanitary napkin comprising a core of absorbent fibrous material and a fluid pervious cover overlying at least the top surface of said core, said cover and said core being compression bonded together on the top of said core along relatively narrow embossed lines spaced inwardly from the lateral and end edges of said napkin, said embossed lines forming a dense channel extending longitudinally near each of the lateral edges of said napkin and a dense channel extending transversely near each of the end edges of said napkin, said longitudinally extending channels and transversely extending channels being connected together at their respective ends and being impressed to a depth of at least one-half the thickness of said napkin, and a deeply embossed wedge-shaped channel impressed from the bottom of said napkin at the rearward end thereof, the apex of said wedge-shaped channel being positioned medially and directed towards the forward end of said napkin and extending a distance less than half of the length of said napkin, said wedge-shaped channel forming a correspondingly shaped and positioned ridge on the top of said napkin whereby the napkin is narrowed at the rearward end thereof.
Claim 3
Dependent Claim
19 words
The sanitary napkin of claim 1 wherein said napkin is provided with attachment tabs extending beyond the ends thereof.
Claim 4
Dependent Claim
41 words
The sanitary napkin of claim 1 wherein said napkin is arcuate longitudinally with its ends being curved upwardly, the arcuate configuration of said napkin being stabilized and maintained by said longitudinally extending dense channels impressed from the top of said napkin.
Claim 5
Dependent Claim
44 words
The sanitary napkin of claim 1 wherein said napkin is tabless, the cover being folded back upon itself at the forward and rearward ends thereof and being compression bonded to said napkin within said transversely extending channels impressed from the top of said napkin.
Claim 6
Dependent Claim
60 words
The sanitary napkin of claim 1 wherein said cover includes a longitudinally extending fluid-pervious central panel overlying the top surface of said napkin in the area bonded by said longitudinally and transversely extending dense channels, said central panel being of greater free area than the rest of said cover which extends and overlaps said core on the bottom surface thereof.
Claim 7
Dependent Claim
28 words
The sanitary napkin of claim 5 wherein said central panel of said cover is a loose knit fabric and the rest of said cover is a nonwoven fabric.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |