US3329145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary napkin having control element with gel-forming material
Assignee: Johnson and Johnson
•
Filing: 1965-02-12
•
Granted: 1967-07-04
•
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 13:52
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.
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Cited
US3078849A
Cited
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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) | 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 |