Patent US3329145A successfully refreshed from Google Patents.
US3329145A
Expired / Lapsed
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Sanitary napkin having control element with gel-forming material
Assignee: Johnson and Johnson
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Filing: 1965-02-12
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Granted: 1967-07-04
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Expires: 1985-02-12
Abstract
No abstract record available.
Inventors
- 👤 Merre Leon J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:57
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/537; A61F13/53743; A61F13/53756; A61F13/53752; A61F13/56; A61F13/64; A61F2013/530481; A61F2013/530489; A61F2013/530496; A61F2013/53445; A61F2013/5694
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A SANITARY NAPKIN COMPRISING A RELATIVELY THICK ELONGATED ABSORBENT CORE, A LIQUID PERVIOUS COVER AROUND SAID CORE AND A FLUID CONTROL ELEMENT POSITIONED INTERIORLY OF SAID NAPKIN, SAID FLUID CONTROL ELEMENT COMPRISING A RELATIVELY THIN LAYER OF FIBROUS MATERIAL CONTAINING IN ADMIXTURE PECTIN AND AN ACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHOTUNGSTIC, TANNIC AND SULFOSALICYLIC ACIDS.
Claim 2
Dependent Claim
57 words
A SANITARY NAPKIN COMPRISING A RELATIVELY THICK ELONGATED ABSORBENT CORE, A LIQUID PERVIOUS COVER AROUND SAID CORE AND A FLUID CONTROL ELEMENT POSITIONED INTERIORLY OF SAID NAPKIN, SAID FLUID CONTROL ELEMENT COMPRISING A RELATIVELY THIN LAYER OF FIBROUS MATERIAL CONTAINING IN ADMIXTURE PECTIN AND AN ACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHOTUNGSTIC, TANNIC AND SULFOSALICYLIC ACIDS.
References Cited (Backward Citations)
US1950957A
Cited
US2331271A
Cited
US2440141A
Cited
US2542909A
Cited
US3078849A
Cited
US3121427A
Cited
US3124135A
Cited
US3146168A
Cited
US3249109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |