A tube that is open or free of obstruction.
A tube described as patent during a hysterosalpingogram is good news. It means the tube is open, and not blocked. It's a normal finding.
An artery that is patent is an open tube. Blood will not flow through a closed tube.
A tube that is open or free of obstruction.
Quite a few have, Winchester is one.
surgery to correct a urachus (a tube that connects the fetal bladder to the umbilical cord) that fails to close after birth.
The first patent for the pneumatic cylinder was issued in 1940 in the US to Samuel Clegg and Jacob Selvan. Alfred Beach was given a patent in 1865 for a pneumatic subway train using a giant pneumatic tube.
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There is no picture of Sarah, but she was born in the year 1850. Got her patent on July 14th, 1885 when she was 35 years old. She invented the cabinet bed. Patent #322,177. Died January 25, 1909 when she was 59.
US Patent 1,661,367 is for a tube flaring tool and was granted to Bernard F. Helminiak of Milwaukee, Wisconsin, on 6 March 1928.
The surgical procedure in which an incision is made in the trachea through the neck and a tube or catheter is inserted into this opening in order to provide a passage way for air in the event that a persons' airway has been obstructed in someway, facilitating breathing.
A patent is a grant from a patent office, such as the United States Patent Office. "Patent Pending" is a phrase that an application for a patent has been filed and is in some stage in the process of obtaining a patent. Thus, a patent can be presently enforced while a patent that is merely pending is unenforceable but can mature into a patent that can be enforced. Once the pending patent matures, the patent owner can sue for back damages or reasonable royalties starting from the filing date of the patent.
If the urachus remains open all the way to the bladder, there is the danger that bacteria will enter the bladder through the open tube and cause infection.