Topical steroid formulation in form of lotion or cream
Patent 4048310 Issued on September 13, 1977. Estimated Expiration Date: 
September 13, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 13, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3892856 3892857 3900561 Steroidal[16,17-b]1,4-dioxanes and Steroidal[16,17-b]1,4-dioxins Patent #: 3971772 InventorsAssigneeApplicationNo. 660963 filed on 02/24/1976US Classes:514/174, -O-C-O- is part of a hetero ring (e.g., acetonide, etc.)514/873, EMOLLIENT514/943Higher fatty acid or derivative containingExaminersPrimary: Roberts, Elbert L.Attorney, Agent or FirmInternational ClassesA61K 031/56A61K 031/58 AbstractSteroid formulations in the form of creams or lotions which are used as topical anti-inflammatory agents are provided wherein the steroid, such as 21-chloro-9-fluoro-Ɗ4 -pregnene-11ଲ,16,17-triol-3,20-dione 16,17-acetonide, is at least partially dissolved in a ricinoleate vehicle such as castor oil. | |
