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Patent US3674595A successfully refreshed from Google Patents.
US3674595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for applying pressure sensitive adhesive to sanitary napkins
Assignee: Kimberly Clark Corp
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Filing: 1970-05-08
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Granted: 1972-07-04
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Expires: 1990-05-08
Abstract
Abstract AN IMPROVED METHOD FOR APPLYING PRESSURE SENSITIVE ADHESIVE TO THE BOTTOM SURFACE OF SANITARY NAPKINS. A PRESURE SENSITIVE ADHESIVE MASS CARRIED ON ONE SIDE OF CONVENTIONAL PROTECTIVE RELEASE PAPER IS FIRST ADHERED TO THE NAPKIN SURFACE. HEAT AND PRESSURE ARE THEN APPLIED TO THE OTHER SIDE OF THE RELEASE PAPER. THIS OPERATION ATTACHES THE ADHESIVE MORE FIRMLY TO THE POROUS NAPKIN SURFACE, WHILE REDUCING THE FORCE NEEDED TO STRIP THE SMOOTH PROTECTIVE PAPER FROM THE ADHESIVE WHEN PREPARING THE NAPKIN FOR USE.
Inventors
- 👤 Robert J Roeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:16
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/5605; A61F13/5611
Claims Analysis
Total Claims: 0
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |