TREA

Uninterruptible power supply cell

Follow

Information

  • Patent Grant
  • D316396
  • Patent Number
    D316,396
  • Date Filed
    Thursday, August 13, 1987
    37 years ago
  • Date Issued
    Tuesday, April 23, 1991
    33 years ago
Information
Abstract
Description
Claims
  • The ornamental design for an uninterruptible power supply cell, as shown and described.
Priority Claims (1)
Number Date Country Kind
505 Feb 1987 FRX
US Referenced Citations (3)
Number Name Date Kind
D245159 Hardy Jul 1977
D250950 Knodt et al. Jan 1979
D295976 Aremka et al. May 1988
Non-Patent Literature Citations (4)
Entry
UPS unit on p. 140 of Electrical Construction and Maintenance, 11-85.
UPS unit on p. 20 of Electrical Consultant, Mar./Apr. 1986.
UPS unit on p. 56 of Electrical Consultant, Jul./Aug. 1986.
UPS units on pp. 58 and 59 of Electrical Consultant, Jul./Aug. 1986.