Patents by Inventor Olga Zdanov

Olga Zdanov 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).

  • Carrying case for hygienic telephone sheilds
    Patent number: 5550918
    Abstract: A carrying case is provided for disposable or reusable telephone sanitary shields. The carrying case has a compartment for the telephone shields and a compartment or two for carrying coins or tokens for use in a public telephone. Where a reusable telephone shield is used, the compartment is provided with a raised portion which sandwiches the reusable shield between layers of disinfectant material, which disinfect the shield between uses.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: August 27, 1996
    Inventor: Olga Zdanov