Patent US2880865A successfully refreshed from Google Patents.
Patent US3746592A successfully refreshed from Google Patents.
US3746592A
Expired / Lapsed
US
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Method of producing sanitary napkins
Assignee: Paper Converting Machine Co
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Filing: 1971-12-29
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Granted: 1973-07-17
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Expires: 1991-12-29
Abstract
Abstract A sanitary napkin which has a fluff layer sandwiches between carrier layers, the sandwich being c-folded to provide a lined channel on one side of the sandwich which encourages more even, rapid, and complete dispersion of body fluids. By arranging the various elements of the apparatus for producing the napkin in a predetermined way, it is possible to alternatively produce diaper inserts.
Inventors
- 👤 E Nystrand
- 👤 Intosh B Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15617; A61F13/15634; B; B32; B32B; B32B3/00; B32B3/26; B32B3/28; A61F13/53; A61F13/534; A61F13/53409; A61F13/53418; A61F13/537; A61F13/56; A61F13/58; A61F2013/15821; A61F13/45; A61F13/49; A61F2013/49068; A61F2013/49076; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530131; A61F2013/53445; A61F2013/53765; A61F2013/53786; A61F2013/586; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2555/00; B32B2555/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101; Y10T156/1011; Y10T156/1015; Y10T156/1028; Y10T156/103; Y10T156/1051; Y10T156/1052; Y10T156/1056; Y10T156/1057
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |