Patent US3697642A successfully refreshed from Google Patents.
US3697642A
Expired / Lapsed
US
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Method of protecting the skin from ultraviolet radiation with titanic acid and esters of titanic acid
Assignee: Cosmetics and Pharmaceuticals Inc
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Filing: 1969-03-03
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Granted: 1972-10-10
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Expires: 1989-03-03
Abstract
Abstract An effective ultra-violet absorber composition and process for controlling sunburn by applying to the skin a composition which comprises a hydrated, substantially transparent gel represented by the formula: WHEREIN: A. R1 and R2 are independently selected from the group consisting of hydrogen, short chain alkyl, and ligands capable of chelate formation, and B. N IS ANY INTEGER IN A DERMATOLOGICALLY ACCEPTABLE CARRIER, THE GEL BEING EMPLOYED IN AN AMOUNT EFFECTIVE TO PROTECT THE SKIN AND OTHER SURFACES FROM THE HARMFUL EFFECTS OF THE BURNING RAYS OF THE SUN.
Inventors
- 👤 Edward J Madigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:19
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/29; A61K8/30; A61K8/58; A61Q; A61Q17/00; A61Q17/04; C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/053; C07; C07F; C07F7/00; C07F7/003; A61K2800/00; A61K2800/40; A61K2800/58; C01P; C01P2002/00; C01P2002/80; C01P2002/84; C01P2004/00; C01P2004/60; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
The method of claim 1 wherein both R1 and R2 are hydrogen.
Claim 2
Dependent Claim
13 words
The method of claim 1 wherein R1 is isopropyl, and R2 is triethanolamine.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |