United States Patent 3216422
Inventors:
Steiger, Fred H.
Ciencewicki, Evelyn A.
Publication Date:
11/09/1965
Assignee:
JOHNSON & JOHNSON
International Classes:
A61F5/455; A61F6/08; A61F5/451; A61F6/00
US Patent References:
| 2943625 | Catamenial device | | | |
| 3015598 | Manufacturing absorbent diaphragms | | | |
| 3128767 | Vaginal tampon device incorporating membrane for substantially blocking inflow of water | | | |