Sanitary napkin

• US 3,343,543 A
• Filed: 06/10/1964
• Issued: 09/26/1967
• Est. Priority Date: 06/10/1964
• Status: Expired due to Term

• Current Assignee: Glassman, Jacob A.
• Original Assignee: Glassman, Jacob A.
• Inventors: Glassman, Jacob A.
• Application Number:
  US04/373,987
• Time in Patent Office: 1,203 Days
• US Class Current: 604/380
• CPC Class Codes: A61F 13/47 Sanitary towels, incontinence pads or napkins A61F13/49 takes precedence
• CPC Class Codes: A61F 13/472 specially adapted for female use A61F13/474, A61F13/475, A61F13/476 take precedence
• CPC Class Codes: A61F 13/47227 for interlabial use
• CPC Class Codes: A61F 13/511 Topsheet, i.e. the permeable cover or layer facing the skin
• CPC Class Codes: A61F 13/53436 having an undulated or corrugated cross-section
• CPC Class Codes: A61F 13/537 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer A61F13/538 takes precedence
• CPC Class Codes: A61F 13/53756 the layer facing the back-sheet
• CPC Class Codes: A61F 13/64 Straps, belts, ties or endless bands A61F13/5605, A61F13/5622, A61F13/66 take precedence
• CPC Class Codes: A61F 2013/51078 being embossed
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/51492 having specially shaped gas or air bubbles or bag-like structure
• CPC Class Codes: A61F 2013/53721 with capillary means
• CPC Class Codes: A61F 2013/53778 with grooves
• CPC Class Codes: A61F 2013/5694 Other non adhesive means than hook and loop-type fastener or belts A61F13/62, A61F13/64 and A61F13/66 take precedence

Claims

1. A SANITARY NAPKIN COMPRISING A FLAT SUBSTANTIALLY RECTANGULAR MASS OF FLUID ABSORBENT MATERIAL HAVING A BODY CONTACTING TOP SURFACE, A BOTTOM SURFACE AND SIDE SURFACES;

A FLUID RESISTANT BARRIER OVERLYING THE BOTTOM SURFACE;

THE SIDE SURFACES AND LONGITUDINAL MARGINAL AREAS OF THE TOP SURFACE;

EACH LONGITUDINAL MARGINAL AREA COMPRISING APPROXIMATELY ONE-THIRD THE WIDTH OF THE ABSORBENT MASS SO AS TO LEAVE THE LONGITUDINAL MEDIAL PORTION OF THE TOP SURFACE UNCOVERED;

AND A PAIR OF LONGITUDINAL LATERALLY SPACED GROOVES IN SAID MEDIAL PORTION, SAID GROOVES TERMINATING SHORT OF THE ENDS OF SAID MASS AND DEFINING BETWEEN THEM AN AREA THAT WILL PROTRUDE FROM THE TOP SURFACE OF THE MASS IN THE FORM OF A RIDGE WHEN THE MASS IS FOLDED ALONG A MEDIAL LONGITUDINAL LINE INTO AN INVERTED U-SHAPE.