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ROYSTER COMPANY, THE, A VA CORP
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NORWALK, VA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for handling blended dry particulate materials
Patent number
4,561,818
Issue date
Dec 31, 1985
The Royster Company
Ernest R. Capps
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Patent Grant
Process for manufacturing potassium polyphosphate
Patent number
4,174,376
Issue date
Nov 13, 1979
Royster Company
James E. Seymour
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Trademark
last 30 trademarks
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Trademark
73778362 - MICRONEL
Serial number
73778362
Registration number
1572693
Filing date
Feb 2, 1989
Royster Company
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
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Trademark
73715522 - GREEN TIME
Serial number
73715522
Registration number
1509731
Filing date
Mar 7, 1988
Royster Company
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73468206 - PREMIUM BRIGHT
Serial number
73468206
Registration number
1351147
Filing date
Mar 2, 1984
Royster Company
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73432286 - SULFACAL
Serial number
73432286
Registration number
1288544
Filing date
Jun 27, 1983
Royster Company
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73138100 - VIM
Serial number
73138100
Registration number
1087540
Filing date
Aug 19, 1977
ROYSTER COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72364677 - DIAMOND-R
Serial number
72364677
Registration number
912147
Filing date
Jul 8, 1970
ROYSTER COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72339597 - R ROYSTER
Serial number
72339597
Registration number
919663
Filing date
Oct 2, 1969
ROYSTER COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
72308533 - ROYSTER
Serial number
72308533
Registration number
875462
Filing date
Sep 30, 1968
ROYSTER COMPANY
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry