Intravaginal ring
US4292965A · kind A · utility
134Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1978 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Dec 29, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F6/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to an improved intravaginal ring for use as a contraceptive comprising an inert elastomer core, a medicated layer encircling the core and an outer inert elastomer layer and method of manufacturing the intravaginal ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.