Classification Codes example:
Potato Chips = 426/637
Class 426: FOOD OR EDIBLE MATERIAL: PROCESSES COMPOSITIONS, & PRODUCTS
This subclass is indented under subclass 615. Subject matter involving material derived from
an edible tuber, i.e., white potato, sweet potato & yam.
615 Plant material is basic ingredient other than extract, starch or protein
Generally spherical object with floppy filaments to promote sure capture
US 4,756,529; July 12, 1988
An amusement device which has a substantially spherical configuration, & which is formed from a large plurality of floppy, elastomeric filaments that radiate in a dense, bushy manner from a central core region. The filaments are sufficiently floppy to collapse on impact, thus to absorb enough energy to avoid any tendency to bounce. They are also sufficiently dense & floppy that they tend to quickly thread their way between the fingers of a user on contact with the hand. These features promote sure & quick capture of the device during the act of catching.
The Engineering & Science Library at the Queen's University (Kingston, Ontario) has put together a wonderful collection of tutorials and handsouts on patent searching. in the past, I received permission from the author's and handed them out in classes. As more and more training is done virtually, I will link to some of the recommended sources here. Thank you to these librarians!