US3691271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin having homogeneously distributed microcapsules filled with delay releasable bactericidal and fungicidal deodorant
Assignee: Individual
•
Filing: 1970-02-04
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Granted: 1972-09-12
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Expires: 1990-02-04
Abstract
Abstract A sanitary napkin made of cellulose batting or layers of paper or cotton absorbent fabric and a multiplicity of individual microcapsules enveloping a deodorant agent. The microcapsules are homogeneously distributed in the cellulose batting or in alternating layers on the fabric to effect a delayed release of the deodorant therefrom, the walls of said microcapsules being permeable or soluble on contact with the fluid associated with menstrual discharge.
Inventors
- 👤 Roger Charle
- 👤 Charles Zviak
- 👤 Gregoire Kalopissis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:18
CPC Classifications
A; A61; A61Q; A61Q15/00; A61K; A61K8/00; A61K8/02; A61K8/0208; A61K8/11; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/408; A61L2300/60; A61L2300/62; A61L2300/622; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
17 words
The sanitary napkin of claim 1, wherein the walls of the microcapsules are made of polyvinyl acetate.
Claim 2
Dependent Claim
12 words
The sanitary napkin of claim 1, wherein the deodorant agent includes salicylanilide.
Claim 3
Dependent Claim
18 words
The sanitary napkin of claim 1, wherein the microcapsules have a size ranging from 30 - 50 microns.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |