Trademark: 72393799
Word
PERMAPHASE
Status
Dead
Status Code
900
Status Date
Monday, January 25, 1993
Serial Number
72393799
Registration Number
0932579
Registration Date
Tuesday, April 18, 1972
Mark Type
1000
Filing Date
Thursday, June 3, 1971
Trademark Owner History
E. I. DU PONT DE NEMOURS AND COMPANY
Classifications
31 SUPERFICIALLY POROUS SPHERICAL PARTICLES FOR USE AS CHROMATOGRAPHIC COLUMN PACKING MATERIAL
Trademark Events
Jan 25, 1993
Expired Sec. 9
Apr 11, 1978
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.
CRAN BARRY
E
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