Safety filter element

Details Safety filter element Safety filter element

1998-07-24

1999-11-09

Taylor, Robin V.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Treatment

2301

Patent

active

D04163087

REFERENCES:
patent: D401306 (1998-11-01), Ward et al.
patent: D404797 (1999-01-01), Jameson
patent: 3469707 (1969-09-01), Humbert, Jr. et al.
patent: 3698562 (1972-10-01), Farrow et al.
patent: 4801383 (1989-01-01), Haffmann et al.
patent: 5082476 (1992-01-01), Kahlbaugh et al.
patent: 5336405 (1994-08-01), Tang et al.
patent: 5443721 (1995-08-01), Kelada et al.
patent: 5613992 (1997-03-01), Engel
patent: 5728298 (1998-03-01), Hamlin
Exhibit A, Photographs of a prior art safety filter element (2 pages, 4 photographs).

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