PERMALITE
Filed: October 8, 1945
MATERIALS IN POWDERED AND GRANULAR FORM FORMED FROM THE MINERALS PERLITE AND DIATOMACEOUS SILICA, FOR USE AS A FILLER, BODY…
Owned by: GREFCO, INC.
Serial Number: 71489606
DICALITE
Filed: August 3, 1948
DIATOMACEOUS EARTH, KIESELGUHR, AND INFUSORIAL EARTH FILLERS ESPECIALLY PREPARED FOR USE IN POLISHES AND MILD ABRASIVES
Owned by: GREFCO, INC.
Serial Number: 71562699
4200
Filed: September 3, 1948
DIATOMACEOUS EARTH IN POWDERED FORM, USED AS A FILTER AID, FILLER, OR ABSORBENT
Owned by: GREFCO, INC.
Serial Number: 71564617
DIABESTOS
Filed: August 15, 1956
PRECOAT FILTER AID
Owned by: GREFCO, INC.
Serial Number: 72013984
PERMABOND
Filed: September 26, 1961
Special Thin Coat Plaster Composition for Drywall Construction to Be Made from a Blend of Synthetic Anhydrite and Other…
Owned by: GREFCO, INC.
Serial Number: 72128671
CELLU-AID
Filed: July 17, 1962
Powdered Diatomite
Owned by: GREFCO, INC.
Serial Number: 72149181
DIA-FLOC
Filed: March 8, 1965
FILTER AIDS
Owned by: GREFCO, INC.
Serial Number: 72213558
FIBERPERL
Filed: September 8, 1970
WATER REPELLENT OIL ABSORBENT
Owned by: GREFCO, INC.
Serial Number: 72370103
DICA-PAK
Filed: January 8, 1971
POLYETHYLENE FILM PACKAGING MATERIAL
Owned by: GREFCO, INC.
Serial Number: 72380479
FIBERPERL
Filed: June 7, 1971
WATER REPELLANT OIL ABSORBENT
Owned by: GREFCO, INC.
Serial Number: 72394093
PK
Filed: July 1, 1971
INSULATION BOARD
Owned by: GREFCO, INC.
Serial Number: 72396337
DICA-SORB
Filed: September 7, 1971
WATER REPELLENT OIL ABSORBENT
Owned by: GREFCO, INC.
Serial Number: 72402095
DTS
Filed: May 14, 1973
FIREPROOF COATINGS FOR METAL FEATURING PERLITE AGGREGATES
Owned by: GREFCO, INC.
Serial Number: 72457545
DICA-SCOOP
Filed: March 14, 1974
MEASURING DEVICE FOR CONSTRUCTION MATERIALS-NAMELY, A CARDBOARD BOX CALIBRATED TO HOLD A SPECIFIC MEASUREMENT OF CONSTRUCTION…
Owned by: GREFCO, INC.
Serial Number: 73015936
MICROPERL
Filed: July 23, 1974
PERLITE MATERIAL FOR USE AS A PLASTIC FILLER
Owned by: GREFCO, INC.
Serial Number: 73027542
PERMA-FASTNER
Filed: July 23, 1974
FASTENING SCREWS FOR ROOF DECKS
Owned by: GREFCO, INC.
Serial Number: 73027543
DICA-BRITE
Filed: March 31, 1975
FILTER MEDIA FOR USE IN AQUEOUS FILTRATION
Owned by: GREFCO, INC.
Serial Number: 73048155
GT
Filed: August 22, 1975
PERLITE MATERIAL FOR USE AS A PLASTIC FILLER
Owned by: GREFCO, INC.
Serial Number: 73061166
DICAMITE
Filed: August 13, 1976
DIATOMACEOUS EARTH COMPOSITION FOR USE AS A FILTER AID
Owned by: GREFCO, INC.
Serial Number: 73096577
PK PLUS
Filed: October 7, 1977
ROOF INSULATION BOARD
Owned by: GREFCO, INC.
Serial Number: 73144039
SHEATHER
Filed: September 15, 1978
INSULATED SHEATHING FOR BUILDINGS
Owned by: GREFCO, INC.
Serial Number: 73185855
DICAPERL
Filed: August 29, 1983
Perlite Material for Use as a Filler for Plastics
Owned by: GREFCO, INC.
Serial Number: 73441413
DICA-BLOC
Filed: December 15, 1988
PERLITE SUBSTRATE FOR USE WITH SEEDS AND PLANTS IN AGRICULTURE AND HORTICULTURE
Owned by: GREFCO, INC.
Serial Number: 73769476
