US4014341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent article and method
Assignee: Colgate Palmolive Co
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Filing: 1976-08-02
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Granted: 1977-03-29
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Expires: 1996-08-02
Abstract
Abstract An absorbent article comprising an absorbent pad having a front surface, a fluid pervious top sheet covering at least a portion of the front surface of the pad, and a perforated film of thermoplastic material intermediate the sheet and pad. The film is heated to enlarge the perforations and fuse the film to the sheet and pad.
Inventors
- 👤 Hamzeh Karami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:44
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/15577; A61F13/15617; A61F13/15634; A61F13/15666; A61F13/15674; A61F13/53; A61F13/534; A61F13/537; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
85 words
An absorbent article comprising, an absorbent pad having a front surface, a fluid pervious top sheet covering at least a portion of the front surface of the pad, and a film of thermoplastic material intermediate the top sheet and pad, said film being fused to said top sheet in a region of said film over said pad, said film having a plurality of openings extending through the film in at least a portion of said region to define a fluid receiving area of the article.
Claim 2
Dependent Claim
85 words
An absorbent article comprising, an absorbent pad having a front surface, a fluid pervious top sheet covering at least a portion of the front surface of the pad, and a film of thermoplastic material intermediate the top sheet and pad, said film being fused to said top sheet in a region of said film over said pad, said film having a plurality of openings extending through the film in at least a portion of said region to define a fluid receiving area of the article.
Claim 3
Dependent Claim
16 words
The article of claim 1 wherein said openings comprise perforations in the film enlarged by heating.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |