Education
He graduated from the Kansas City College of Osteopathy in 1918 and spent 10 years in Colorado as a country general practitioner, then went to Denver in 1928.
He graduated from the Kansas City College of Osteopathy in 1918 and spent 10 years in Colorado as a country general practitioner, then went to Denver in 1928.
He invented a flexible ring for a contraceptive diaphragm (and made $50,000 from selling the patent), sold real estate and was president of a company that manufactured antiseptics. So he developed a plug of cotton inserted by means of two cardboard tubes. He did not want the woman to have to touch the cotton.
He applied for a patent for the "Catamenal device" on November 19, 1931, and was granted United States. Patent Number.
1,926,900 on September 12, 1933. After failing to get people interested in his invention (including the Johnson & Johnson company), on October 16, 1933 he finally sold the patent and trademark to a Denver businesswoman, Gertrude Tendrich, for $32,000.
She started the Tampax company and was its first president Tendrich was an ambitious German immigrant who made the first Tampax tampons at her home using a sewing machine and Doctor Haas"s compression machine.
Tampons based on Doctor Haas" design were first sold in the United States. in 1936.
The London Sunday Times newspaper in 1969 named Haas one of the "1000 Makers of the Twentieth Century."
After selling the rights to the tampon, he continued with his doctor"s practice and various business enterprises. He regretted later selling the rights, but was glad it was successful, and died at 93 in 1981. Up to right before his death he continued to try to improve the tampon.