His enterprise was hampered because his contraceptive business was illegal in the early 20th-century United States (prior to Margaret Sanger's local legalization and nationwide Griswold v. Connecticut).
He eventually managed to find work with a sausage-casing manufacturer and began to sell skins on the side which led to his founding of a contraceptive company.
[5] By the 1930s the company had become one of the leading contraceptive manufacturers in the United States[6] and Fortune magazine declared Julius as the industry's "grand old man.
As the company prospered, Julius developed a second business which became the nationally renowned Beaverdam Stock Farm, a Holstein breeding operation.
By 1950 the company was selling over half the condoms manufactured in America,[8] and was expanding throughout Canada, and opening plants in Christchurch, New Zealand; Humacao, P.R.