Patents by Inventor William O. Holmes

William O. Holmes 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: 4320756
    Abstract: The recent rash of fires in high-rise hotels and deaths occasioned thereby has given rise to the need for a breathing device and method for supplying a hotel guest and/or fireman with fresh air until he can be rescued. The device and method of this invention provide for the insertion of a breathing tube through the water trap of a toilet to expose an open end thereof to fresh air from a vent pipe connected to a sewer line of the toilet, to enable the user to breathe fresh air through the tube.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: March 23, 1982
    Inventor: William O. Holmes