US3124135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic products
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/84; A61F13/45; A61F13/47; A61F13/8405; A61F13/53; A61F13/534; A61F2013/53445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A SANITARY NAPKINS COMPRISING MULTIPLE LAYERS OF ABSORBENT ELEMENTS, AT LEAST ONE OF SAID ELEMENTS HAVING UNIFORMLY DISTRIBUTED THERETHROUGH A NON-TOXIC PROTEINPRECIPITATING SALT IN AN AMOUNT BY WEIGHT AT LEAST EQUAL TO ABOUT THE DRY WEIGHT OF THE ABSORBENT MATERIAL IN SAID ELEMENT, SAID SALT-CONTAINING ELEMENT BEING POSITIONED INTERIORLY OF SAID PAD WHEREBY DARK-COLORED PORTIONS OF MENSTRUAL FLUID ABSORBED THEREIN DURING NORMAL USE ARE PRECIPITATED OUT AND RETAINED INTERIORLY OF SAID NAPKINS.
Claim 2
Dependent Claim
72 words
A SANITARY NAPKINS COMPRISING MULTIPLE LAYERS OF ABSORBENT ELEMENTS, AT LEAST ONE OF SAID ELEMENTS HAVING UNIFORMLY DISTRIBUTED THERETHROUGH A NON-TOXIC PROTEINPRECIPITATING SALT IN AN AMOUNT BY WEIGHT AT LEAST EQUAL TO ABOUT THE DRY WEIGHT OF THE ABSORBENT MATERIAL IN SAID ELEMENT, SAID SALT-CONTAINING ELEMENT BEING POSITIONED INTERIORLY OF SAID PAD WHEREBY DARK-COLORED PORTIONS OF MENSTRUAL FLUID ABSORBED THEREIN DURING NORMAL USE ARE PRECIPITATED OUT AND RETAINED INTERIORLY OF SAID NAPKINS.
References Cited (Backward Citations)
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Cited
US1702530A
Cited
US1950957A
Cited
US2144632A
Cited
US2187163A
Cited
US2564689A
Cited
US2542909A
Cited
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Cited
US2900980A
Cited
US2902038A
Cited
US2896627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |