Why do sewer rats grow so much larger then pet rats do? Are they a different species and if so how come they do not make it into the pet trade as in captive bred clean versions? I saw a rat as big as two large cats within one the other day and this got me to thinking, hence the question above.
In the United States, under current patent law, the term of patent, provided that maintenance fees are paid on time, are: 1  For applications filed on or after June 8, 1995, the patent term is 20 years from the filing date of the earliest U.S. or international (PCT) application to which priority is claimed (excluding provisional applications).
The Â§111(a) non-provisional application for patent must be filed within 12 months of the provisional application for patent filing date to claim the benefit of the provisional application filing date. As always, consult with a patent attorney if you should have any questions.he period of up to one year of pendency for the provisional application is excluded from the term calculation of a granted patent that relies upon the provisional application for patent, thus providing a term endpoint that is 21 years from the provisional application filing date.