US3097912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair and wool depilation method and composition
Assignee: Individual
•
Filing: 1959-03-30
•
Granted: 1963-07-16
•
Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Booth Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:24
CPC Classifications
C; C14; C14C; C14C1/00; C14C1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A COMPOSITION FOR THE DEPILATION OF ANIMAL SKINS BY PAINTING THE FLESH SIDE OF SAID SKINS, COMPRISING A SUSTANTIALLY LIME-FREE, WATER SOLUBLE ALKALI FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, AND ACCELERATOR FOR THE ALKALI COMPOSED OF A WATER SOLUBLE SULPHIDE COMPRISING NOT MORE THAN 3% OF THE COMPOSITION BY WEIGHT, AN INHIBITOR FOR THE OXIDATION OF THE SULPHIDE COMPRISING SODIUM SULPHITE IN A CONCENTRATION OF NOT MORE THAN 2% OF THE COMPOSITION BY WEIGHT, AND PROMOTER FOR THE OXIDATION OF THE SULPHIDE, SAID PROMOTER CONTAINING FINELY DIVIDED FERRIC OXIDE PRESENT IN A CONCENTRATION OF ABOUT HALF THE CONCENTRATION OF THE INHIBITOR, AND SAID PROMOTER BEING INCAPABLE OF DIFFUSION THROUGH THE ANIMAL SKIN.
Claim 2
Dependent Claim
116 words
A COMPOSITION FOR THE DEPILATION OF ANIMAL SKINS BY PAINTING THE FLESH SIDE OF SAID SKINS, COMPRISING A SUSTANTIALLY LIME-FREE, WATER SOLUBLE ALKALI FROM THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE, AND ACCELERATOR FOR THE ALKALI COMPOSED OF A WATER SOLUBLE SULPHIDE COMPRISING NOT MORE THAN 3% OF THE COMPOSITION BY WEIGHT, AN INHIBITOR FOR THE OXIDATION OF THE SULPHIDE COMPRISING SODIUM SULPHITE IN A CONCENTRATION OF NOT MORE THAN 2% OF THE COMPOSITION BY WEIGHT, AND PROMOTER FOR THE OXIDATION OF THE SULPHIDE, SAID PROMOTER CONTAINING FINELY DIVIDED FERRIC OXIDE PRESENT IN A CONCENTRATION OF ABOUT HALF THE CONCENTRATION OF THE INHIBITOR, AND SAID PROMOTER BEING INCAPABLE OF DIFFUSION THROUGH THE ANIMAL SKIN.
References Cited (Backward Citations)
US330716A
Cited
US1683442A
Cited
US1860320A
Cited
US2031489A
Cited
US2155087A
Cited
US2775504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |