Patents by Inventor Donald L. Tendrup

Donald L. Tendrup 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: 4592166
    Abstract: A planter formed of two sections, one disposed within the other, in which cooperating projections provided on the sections must slide over each other during the disassembly thereof, so that there is frictional resistance which obviates inadvertent disassembly of the planter.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: June 3, 1986
    Inventors: Donald L. Tendrup, Joseph P. Devito
  • Patent number: 3943661
    Abstract: It is the custom in the trade to designate a "pot," which in use is suspended from an elevated support and whether used for a flower or a plant, as a "flower basket.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: March 16, 1976
    Inventors: Joseph DeVito, Donald L. Tendrup
  • Patent number: D254236
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: February 19, 1980
    Inventors: Joseph DeVito, Donald L. Tendrup
  • Patent number: D283992
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: May 27, 1986
    Inventors: Donald L. Tendrup, Joseph P. Devito