Unidyne III Introduction Dates and Patents

FAQ #3883 Updated October 13, 2017

Question:

Are the expired patents for the Unidyne III microphone available for viewing?When were these Unidyne III models introduced?

Answer:

The expired Unidyne III patents are attached for viewing.

The Unidyne III model 545 was introduced in 1959.

The Unidyne III model SM57 was introduced in 1965.

The Unidyne III model SM58 was introduced in 1966.

The Unidyne III model 565 was introduced in 1966.

The Unidyne III model SM7 was introduced in 1972.

Attachments

Find an Answer

Related Products

545

565

SM57

SM58

SM7

Contact Information

Telephone: (800) 516-2525

Fax: (847) 600-8686

Additional Support

Ask a Question