Patents by Inventor Walter D. Long

Walter D. Long 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).

  • Commercial multicompartment mail message unit
    Patent number: 4356956
    Abstract: A mail message unit of multi compartment type for commercial use; including an elongated case divided into a row of compartments by partitions therebetween, an individually locked, pivotable front door for each compartment, and an elongated, single top cover hinged in an inclined position across a top of the case; the cover being multi-slotted for placement of mail in any of the compartments, and being transparent so as to allow observation therethrough into the compartments.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: November 2, 1982
    Inventor: Walter D. Long