US3275520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for protecting the skin against actinic radiations
Assignee: GAF Chemicals Corp
•
Filing: 1962-05-29
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Granted: 1966-09-27
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Expires: 1982-05-29
Abstract
No abstract record available.
Inventors
- 👤 Albert F Strobel
- 👤 Sigmund C Catino
- 👤 Marvin R Leibowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A METHOD FOR PROTECTING SKIN AGAINST ACTINIC RADIATIONS, THE IMPROVEMENT WHICH COMPRISES APPLYING TO THE SKIN A COMPOSITION COMPRISING (I) A COMPOUND HAVING THE FORMULA AR-C(-R)=C(-Y)-CN WHEREIN (1) R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, ARYL, ALKENYL AND HETERO; (2) Y IS SELECTED FROM THE GROUP CONSISTING OF CN AND -CO-X WHEREIN: X IS SELECTED FROM THE GROUP CONSISTING OF OR3 AND -N(-R1)-R2 R1, R2 AND R3 ARE INDEPENDENTLY ANY R RADICAL; AND (3) AR IS A RADICAL SELECTED FROM THE GROUP CONSISTNG OF AROMATIC CARBOCYCLIC NUCLEI AND HETEROCYCLIC NUCLEI HAVING AT LEAST ONE PAIR OF CONJUGATED DOUBLE BONDS, AND (II) A DERMATOLOGICALLY ACCEPTABLE CARRIER; (III) SAID COMPOUND I BEING DEVOID OF NITRO GROUPS AND AROMATIC NUCLEAR SUBSTITUTED AMINO GROUPS.
Claim 2
Dependent Claim
126 words
IN A METHOD FOR PROTECTING SKIN AGAINST ACTINIC RADIATIONS, THE IMPROVEMENT WHICH COMPRISES APPLYING TO THE SKIN A COMPOSITION COMPRISING (I) A COMPOUND HAVING THE FORMULA AR-C(-R)=C(-Y)-CN WHEREIN (1) R IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, ARYL, ALKENYL AND HETERO; (2) Y IS SELECTED FROM THE GROUP CONSISTING OF CN AND -CO-X WHEREIN: X IS SELECTED FROM THE GROUP CONSISTING OF OR3 AND -N(-R1)-R2 R1, R2 AND R3 ARE INDEPENDENTLY ANY R RADICAL; AND (3) AR IS A RADICAL SELECTED FROM THE GROUP CONSISTNG OF AROMATIC CARBOCYCLIC NUCLEI AND HETEROCYCLIC NUCLEI HAVING AT LEAST ONE PAIR OF CONJUGATED DOUBLE BONDS, AND (II) A DERMATOLOGICALLY ACCEPTABLE CARRIER; (III) SAID COMPOUND I BEING DEVOID OF NITRO GROUPS AND AROMATIC NUCLEAR SUBSTITUTED AMINO GROUPS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |