Skip to content
Patent and Trademark Resource Center Association

Patent and Trademark Resource Center Association

  • JOIN PTRCA!
  • Our Mission
  • Best Practices
  • Bylaws
  • Officers
  • Committees
  • PTRCA Journal
  • Resolutions
  • Esther Crawford PTRCA Distinguished Service Award (DSA)
  • Online Resources
  • Contact PTRCA

Historical Patents and Classification

  • Patent and Patent Classification History
  • Historical Patents Bibliography

Navigation

  • JOIN PTRCA!
  • Our Mission
  • Best Practices
  • Bylaws
  • Officers
  • Committees
  • PTRCA Journal
  • Resolutions
  • Esther Crawford PTRCA Distinguished Service Award (DSA)
  • Online Resources
  • Contact PTRCA

JPTRCA Homepage at Clemson

Latest posts from ricepatinfo.blogspot.com

  • The Mouse Rug
  • New Orleans IP: Chee Wees!
  • An Entertaining History of Skee-Ball IP
  • The Trademark Olympics!
  • Oak Tree Patents and Patent Center

Latest additions to the Directory of American Tool and Machinery Patents (DATAMP.org)

  • US-78,620 Improvement in bench-hooks for carpenters' benches
  • CA-257,184 Wrench
  • US-1,267,456 Leveling instrument
  • US-1,044,473 Scraper
  • US-911,536 Wood Scraper

  • JOIN PTRCA!
  • Our Mission
  • Best Practices
  • Bylaws
  • Officers
  • Committees
  • PTRCA Journal
  • Resolutions
  • Esther Crawford PTRCA Distinguished Service Award (DSA)
  • Online Resources
  • Contact PTRCA