PERMAPHASE
Live / Registered — Expired (as of 25 Jan 1993)
What this means for you
Registered since 18 Apr 1972. The owner can stop confusingly similar uses in the classes it covers.
Record
- Serial number
- 72393799
- Registration number
- 0932579
- Mark type
- Word mark
- Filed
- 03 Jun 1971
- Registered
- 18 Apr 1972
Goods and services
- Class 001 — Chemicals
- Class 031 — Natural agricultural products: SUPERFICIALLY POROUS SPHERICAL PARTICLES FOR USE AS CHROMATOGRAPHIC COLUMN PACKING MATERIAL
Owner
- E. I. DU PONT DE NEMOURS AND COMPANY, WILMINGTON, DE, US
Prosecution history
- 25 Jan 1993 — EXPIRED SEC. 9
- 11 Apr 1978 — REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.