An ingrown toenail is a toenail that has grown into the skin instead of over it. This usually happens to the big toe, but it can also happen to other toes. An ingrown toenail can get infected. It may be painful, red, and swollen, and it may drain pus.See a picture of an ingrown toenail.Anyone can get an ingrown toenail, but adults get them more than children do.he main symptom of an ingrown toenail is the pain from the nail growing into the skin instead of over it. If the ingrown toenail gets infected, it might be swollen or red, and it might drain pus.
As you can imagine, these conferences are filled with great unusual statistics; one of which is the number of US patents that are currently âin force.â In other words, of the millions of US patents that have issued, how many are currently enforceable? (i.e. in term and have had the requisite maintenance fees paid). Today I learned that the number of US patents in force is approximately 1.7 million! Thus, you only have to worry about infringing a possible 1.7 patents.
For U.S. patents filed through June 17, 1995, the patent lasts for 17 years from the date the patent is issued, provided that the fees necessary to keep the patent in force (maintenance fees) are paid. For patent applications filed after June 17, 1995, the patent last 20 years from the date of filing. Since applications typically take one to three years to process, most patents filed after 1995 have an effective duration of 17-19 years.