Patent US4259755A successfully refreshed from Google Patents.
Patent US4563398A successfully refreshed from Google Patents.
US4563398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blank useful in the production of a tampon for feminine hygiene
Assignee: VP Schickedanz AG
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Filing: 1983-09-27
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Granted: 1986-01-07
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Expires: 2003-09-27
Abstract
Abstract A blank useful in the production of a tampon for feminine hygiene consist of a length of cottonwool or rayon staple or combination of it strip wrapped in a moisture-pervious, fluff-free covering material. According to the invention, a covering material consisting at least partly of thermoplastic fibers is used and is sealed at its exposed edges to enclose the length of cottonwool strip in a fluffproof form.
Inventors
- 👤 Scarlet Sustmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:59
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2082; A61F13/2085; A61F13/2051; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A blank useful in the production of a tampon for feminine hygiene comprising a desired length of a strip of cottonwool or rayon staple or combination thereof encompassed in a moisture-pervious fluff-free or fuzz-free nonwoven covering material consisting at least partially of thermoplastic fibers where any edges of said length of a strip of cottonwool or rayon staple or combination thereof remaining open or exposed after combination of said nonwoven covering material with said length of a strip of cottonwool or rayon staple or combination thereof are sealed solely by the application of heat by line or spot welding or bonding to enclose the length of a strip of cottonwool or rayon staple or combination thereof in fluff-proof or fuzz-proof form.
Claim 2
Dependent Claim
121 words
A blank useful in the production of a tampon for feminine hygiene comprising a desired length of a strip of cottonwool or rayon staple or combination thereof encompassed in a moisture-pervious fluff-free or fuzz-free nonwoven covering material consisting at least partially of thermoplastic fibers where any edges of said length of a strip of cottonwool or rayon staple or combination thereof remaining open or exposed after combination of said nonwoven covering material with said length of a strip of cottonwool or rayon staple or combination thereof are sealed solely by the application of heat by line or spot welding or bonding to enclose the length of a strip of cottonwool or rayon staple or combination thereof in fluff-proof or fuzz-proof form.
Claim 3
Dependent Claim
12 words
The blank of claim 1 wherein said sealed edges are spot sealed.
Claim 4
Dependent Claim
48 words
The blank of claim 1 wherein all of the edges of said length of a strip of cottonwool or rayon staple or combination thereof remain open after combination with said covering material and are sealed solely by application of heat by line or spot welding or bonding all-around.
Claim 5
Dependent Claim
49 words
The blank of claim 1 wherein the opposite two edges of said length of a strip of cottonwool or rayon staple or combination thereof remain open after combination with said covering material and are sealed solely by application of heat by heat by line or spot welding or bonding.
Claim 6
Dependent Claim
19 words
A tampon for feminine hygiene comprising a cylindrically-compressed blank of claim 1 to which a recovery thread was attached.
Claim 7
Dependent Claim
27 words
The tampon of claim 5 wherein the sealing seams of said blank are partly enveloped or enclosed before said compression and are situated inside the finished tampon.
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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) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |