Permaphase Trademark Details

Permaphase was registered on Tuesday, April 18, 1972 and is currently owned by E. I. Du Pont De Nemours and Company under the registration number 932579 . This mark is dead with a status of Expired. The last case file activity for this mark occured 31 years ago on Monday, January 25, 1993, according to the United State Patent & Trademark Office
Word Mark Permaphase
Status Dead Registered 900 — Expired

Current Owner

E. I. Du Pont De Nemours and Company of Wilmington, DE

View all trademarks for E. I. Du Pont De Nemours and Company
Other Trademarks for E. I. Du Pont De Nemours and Company
Serial Number 72393799
Registration Number 932579
Status Date Monday, January 25, 1993
Filing Date Monday, January 25, 1993
Registration Date Tuesday, April 18, 1972

Case File Statements

Goods & Services Superficially Porous Spherical Particles for Use as Chromatographic Column Packing Material

Classifications

International Class Codes
001 — Class 1 includes mainly chemical products used in industry, science and agriculture, including those which go to the making of products belonging to other trademark classes. Examples include compost, salt for preserving non-foodstuffs, and certain additives for the food industry.
U.S. Class Codes 031
Status 9 — Expired
Status Date Monday, January 25, 1993
First Use Anywhere Tuesday, April 6, 1971
First Use In Commerce Tuesday, April 6, 1971
Primary Code 031

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