US3010780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making leather water-repellent
Assignee: Boehme Fettchemie GmbH
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Filing: 1958-03-25
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Granted: 1961-11-28
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Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Plapper Jurgen
- 👤 Heyden Rudi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:24
CPC Classifications
C; C14; C14C; C14C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE METHOD OF MAKING TANNED ANIMAL HIDES WATERREPELLENT, WHICH COMPRISES IMPREGNATING SAID HIDES WITH A COMPLEX ORGANOMETALLIC COMPOUND FORMED BY INTERACTION IN SITU OF (1) AN A ANIONIC WATER-MISCIBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) ESTERS AND AMIDES OF TRICARBOXYLIC AND HIGHER POLYCARBOXYLIC ORGANIC ACIDS AND TRIBASIC AND HIGHER POLYBASIC INORGANIC ACIDS, SAID ESTERS AND AMIDES CONTAINING AT LEAST ONE ORGANIC HYDROPHOBIC WATERPROOFING RADICAL IN THE ESTER AND AMIDE MOIETY AND (B) CONDENSATION PRODUCTS OF HIGH MOLECULAR WEIGHT UNSATURATED FATTY ACID WITH MALEIC ACID, SAID COMPOUND CONTAINING AT LEAST TWO FREE, SALTFORMING GROUPS CAPABLE OF FORMING AN ORGANOMETALLIC COMPLEX WITH METALLIC IONS IN THE MINERAL-TANNING AGENT, AND (2) A MINERAL-TANNING AGENT SELECTED FROM THE GROUP CONSISTING OF CHROME-, ALUMINUM-AND IRON-TANNING AGENT, AND DRYING THE IMPREGNATED HIDES.
Claim 2
Independent Claim
128 words
THE METHOD OF MAKING TANNED ANIMAL HIDES WATERREPELLENT, WHICH COMPRISES IMPREGNATING SAID HIDES WITH A COMPLEX ORGANOMETALLIC COMPOUND FORMED BY INTERACTION IN SITU OF (1) AN A ANIONIC WATER-MISCIBLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) ESTERS AND AMIDES OF TRICARBOXYLIC AND HIGHER POLYCARBOXYLIC ORGANIC ACIDS AND TRIBASIC AND HIGHER POLYBASIC INORGANIC ACIDS, SAID ESTERS AND AMIDES CONTAINING AT LEAST ONE ORGANIC HYDROPHOBIC WATERPROOFING RADICAL IN THE ESTER AND AMIDE MOIETY AND (B) CONDENSATION PRODUCTS OF HIGH MOLECULAR WEIGHT UNSATURATED FATTY ACID WITH MALEIC ACID, SAID COMPOUND CONTAINING AT LEAST TWO FREE, SALTFORMING GROUPS CAPABLE OF FORMING AN ORGANOMETALLIC COMPLEX WITH METALLIC IONS IN THE MINERAL-TANNING AGENT, AND (2) A MINERAL-TANNING AGENT SELECTED FROM THE GROUP CONSISTING OF CHROME-, ALUMINUM-AND IRON-TANNING AGENT, AND DRYING THE IMPREGNATED HIDES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |