Patents by Inventor Judith D. Ostwald

Judith D. Ostwald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4947504
    Abstract: An improved sponge mop includes a wringing mechanism for squeezing water from a sponge. The sponge extends several inches beyond the perimeter of the wringing mechanism to reach into a toespace without damaging the overhanging cupboard, cabinet, or other furniture item. The sponge has bevels on the ends thereof that facilitate cleaning corners within the toespace. The sponge is in two layers with a reinforcement plate sandwiched therebetween. The reinforcement plate enables water to be squeezed from the extended sponge ends when the sponge is folded against itself for wringing.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: August 14, 1990
    Inventor: Judith D. Ostwald