One great tip I received as a younger patent attorney was to name components to express function. Our co-founding partner, Ron Smith was a master of drafting claims. His sister, an English professor used to “grade his papers” by reading his patent applications and bleeding (using a red pen) all over them. For example, the phrase “in order to” should not be used. Just say “to” because “in order” is redundant.
On a more substantive issue, it is good practice in mechanical or electrical cases to name components with a name that expresses their function. Thus, calling something a “member” or “an elongate member” or “a cylindrical member” should be avoided. For example, here’s a phrase that could be improved:
“a member extending between the two arm rests and behind the back, wherein the member stabilizes the back;”
If the member stabilizes the back, name it a stabilizer instead of a member. That makes the phrase more straightforward:
“a stabilizer extending between the two arm rests and behind the back for stabilizing the back;”
Or perhaps better yet:
“a back stabilizer extending between the two arm rests and behind the back;”
Notice how a function-descriptive name like “stabilizer” shortens the phrase and an even more function-descriptive name like “back stabilizer” shortens it even more. Using function-descriptive names also makes it easier to remember the various parts as the application is being written.
Generally speaking, a utility patent will expire 20 years from its filing date. The filing date extends back to the earliest related patent application. The earliest related patent application will include foreign applications. However, provisional applications are excluded from the calculation.
A plant patent also expires 20 years from the filing date of the patent application. In contrast, a design patent expires 15 years from its issue date.
There are also several factors that can affect the term of a patent. These factors include, whether the patent claims priority to other applications, whether the patent is subject to a terminal disclaimer, whether the U.S. Patent and Trademark Office added any patent term, and whether the patent owner has paid the necessary maintenance or annuity fees.
Regardless of the type of patent, all patents will eventually expire. Once expired, the disclosed information disclosed becomes part of the public domain. This means that the information contained in the patent is public property and can be used freely by anyone. To confirm, you cannot refile or renew your patent after it runs its full 20-year term (15-year if a design patent).
You should consult an experienced patent attorney to determine when a patent will expire. Feel free to contact Smith & Hopen for additional information.
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