Traps
Because some F-term sheets of practical use are fairly large and complicated like 2H171 and 3C007, examiners sometimes drop applicable F-terms by mistake when they classify documents. In addition, some documents are classified into inappropriate IPC and therefore do not have any appropriate F-terms.
Taking these errors into account, a "defensive" search is conducted by
- using text keywords as well as F-terms or IPCs;
- calculating union rather than intersection of F-terms; and
- using several F-term sheets that are different but describing similar technologies
at the expense of additional time for browsing more documents.
Read more about this topic: F-term (patent Law)
Famous quotes containing the word traps:
“The notion of making money by popular work, and then retiring to do good work, is the most familiar of all the devil’s traps for artists.”
—Logan Pearsall Smith (1865–1946)