US3749772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dermal protective film
Assignee: University of Akron
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Filing: 1970-12-04
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Granted: 1973-07-31
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Expires: 1990-12-04
Abstract
Abstract COMPOSITION OF MATTER FOR PREVENTING SKIN IRRITATION FROM CONTACT WITH "POISON IVY." THE COMPOSITION IS BASED UPON A FILM-FORMING ACRYLIC POLYMER AND INCLUDES A LINKING AGENT SO THAT UPON APPLICATION BY A SOLVENT CARRIER TO THE SKIN A SELECTIVE MEMBRANE IS FORMED. THE COMPOSITION MAY ALSO INCLUDE AN OXIDIZING AGENT FOR BREAKDOWN OF IRRITATION CAUSING ALLERGENS SELECTIVELY RETAINED BY THE MEMBRANE.
Inventors
- 👤 N Cardarelli
- 👤 S Mansdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:28
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/70; A61K9/7015
Claims Analysis
Total Claims: 0
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |