US4650459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convolutely wound paper tampon tube
Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1985-10-21
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Granted: 1987-03-17
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Expires: 2005-10-21
Abstract
Abstract Inner and outer convolutely wound cardboard tubes of a tampon applicator are formed with a different number of ply windings.
Inventors
- 👤 Donald A. Sheldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:37
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
64 words
A tampon applicator comprising a larger diameter outer tube adapted to confine a tampon pledget, a smaller diameter inner plunger tube partially telescoped therein and adapted to eject said pledget from said larger diameter tube, said smaller tube having a wall thickness greater than the wall thickness of said larger tube, and said smaller inner tube is provided with at least one longitudinal slit.
Claim 2
Dependent Claim
64 words
A tampon applicator comprising a larger diameter outer tube adapted to confine a tampon pledget, a smaller diameter inner plunger tube partially telescoped therein and adapted to eject said pledget from said larger diameter tube, said smaller tube having a wall thickness greater than the wall thickness of said larger tube, and said smaller inner tube is provided with at least one longitudinal slit.
Claim 3
Dependent Claim
14 words
The tampon applicator of claim 1, wherein said tubes are convolutely wound paper tubes.
Claim 4
Dependent Claim
34 words
The tampon applicator of claim 1, wherein said greater diameter tube is provided with a projection on its inner surface to interlock with said at least one longitudinal slit of said smaller diameter tube.
Claim 5
Dependent Claim
30 words
The tampon applicator of claim 1 wherein said smaller diameter tube has a wall thickness of four plies and said greater diameter tube has a wall thickness of three plies.
Claim 6
Dependent Claim
30 words
The tampon applicator of claim 3 wherein said smaller diameter tube has a wall thickness of four plies and said greater diameter tube has a wall thickness of three plies.
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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) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |