Patents by Inventor Eulogio C. Tibay

Eulogio C. Tibay 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: 3951253
    Abstract: A typewriter ribbon re-inker is disclosed which is capable of being readily attachable to a standard typewriter ribbon spool and has the capability of applying different color inks to the ribbon without blurring or intermingling. The sub-base, which is attached to the spool, defines two separate and independent ink vessels in which is placed an ink abosrbing material. The ink absorbing material passes through an extension channel communicating with each ink vessel and contacts a roller to supply ink to the roller. The roller, in turn, contacts the typewriter ribbon to transfer the ink to the ribbon.
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: April 20, 1976
    Inventors: Eulogio C. Tibay, Alfredo C. Tibay