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US3221738A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for manufacturing diapers and the like, and a diaper manufactured in accordance with this method

Assignee: Individual
•
Filing: 1963-04-01
•
Granted: 1965-12-07
•
Expires: 1983-04-01
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Abstract

No abstract record available.

Inventors

  • 👤 Gustaf E Ekberg
  • 👤 Green Tord David

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 23:20
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/15577; A61F13/51104; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 149 words
A DIAPER OR SIMILAR PROTECTIVE GARMENT COMPRISING, A PAIR OF RELATIVELY THIN SHEETS OF THERMOPLASTIC MATERIAL JOINED TOGETHER AND SEALED AT THEIR MARGINAL EDGES TO PROVIDE A POCKET BETWEEN THEM, A CORE OF LIQUID ADSORBING MATERIAL DISPOSED IN SAID POCKET BETWEEN THE SHEETS, ONE OF SAID SHEETS BEING LIQUID IMPERMEABLE AND ADAPTED TO BE DISPOSED OUTWARDLY FROM THE USER, THE OTHER OF SAID PLASTIC SHEETS AT LEAST IN THE AREA OF SAID CORE COMPRISING AN EMBOSSED NETWORK OF WATER IMPERMEABLE PLASTIC MATERIAL ADAPTED TO BE DISPOSED INWARDLY TOWARD THE USER, SAID NETWORK BEING DEFINED BY A PLURALITY OF SPACED APART AREAS IN THE PLASTIC SHEET WHICH ARE LIQUID PENETRABLE, EACH OF SAID SPACED APART AREAS HAVING A PLURALITY OF MINUTE PERFORATIONS DISTRIBUTED THROUGHOUT SAID AREA, SAID NETWORK PROVIDING STRUCTURAL STRENGTH FOR SAID INNER SHEET WHILE SAID SPACED APART AREAS PASS BODY LIQUID THERETHROUGH FOR RAPID ADSORPTION IN SAID CORE.
Claim 2
Dependent Claim 149 words
A DIAPER OR SIMILAR PROTECTIVE GARMENT COMPRISING, A PAIR OF RELATIVELY THIN SHEETS OF THERMOPLASTIC MATERIAL JOINED TOGETHER AND SEALED AT THEIR MARGINAL EDGES TO PROVIDE A POCKET BETWEEN THEM, A CORE OF LIQUID ADSORBING MATERIAL DISPOSED IN SAID POCKET BETWEEN THE SHEETS, ONE OF SAID SHEETS BEING LIQUID IMPERMEABLE AND ADAPTED TO BE DISPOSED OUTWARDLY FROM THE USER, THE OTHER OF SAID PLASTIC SHEETS AT LEAST IN THE AREA OF SAID CORE COMPRISING AN EMBOSSED NETWORK OF WATER IMPERMEABLE PLASTIC MATERIAL ADAPTED TO BE DISPOSED INWARDLY TOWARD THE USER, SAID NETWORK BEING DEFINED BY A PLURALITY OF SPACED APART AREAS IN THE PLASTIC SHEET WHICH ARE LIQUID PENETRABLE, EACH OF SAID SPACED APART AREAS HAVING A PLURALITY OF MINUTE PERFORATIONS DISTRIBUTED THROUGHOUT SAID AREA, SAID NETWORK PROVIDING STRUCTURAL STRENGTH FOR SAID INNER SHEET WHILE SAID SPACED APART AREAS PASS BODY LIQUID THERETHROUGH FOR RAPID ADSORPTION IN SAID CORE.

References Cited (Backward Citations)

US2899349A Cited
US2468445A Cited
US3012918A Cited
US2834347A Cited
US2970345A Cited
US2896626A Cited
US3004895A Cited
US3088843A Cited
US3095315A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-12-06 1969-06-07 1969-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-06 1973-06-07 1973-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-06 1977-06-07 1977-12-07 $7700.00 Window Closed / Lapsed

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