Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method for scoring rigid plastic sheet material

Method for scoring rigid plastic sheet material

US Patent 4818461 · Granted Apr 4, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Multi-function cup lid1992
Multi-function cup lid1992
Method for continuously forming open-mouthed foamed plastic containers by blow m1991
Apparatus for scoring rigid plastic sheet material1989
Apparatus for scoring rigid plastic sheet material1989
Plastic closure with score lines1989
Plastic closure with score lines1989
Container lid1988
Tearable structure1987
Trim press having hammer drive for punch1982
Synthetic plastics article manufacturing system1980
Synthetic plastics article manufacturing system1980