US3702769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of polishing leather with compositions containing reaction product of hydroxy endblocked siloxanes and aminofunctional silanes
Assignee: Dow Silicones Corp
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Filing: 1971-01-04
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Granted: 1972-11-14
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Expires: 1991-01-04
Abstract
Abstract A LEATHER POLISH IS DISCLOSED WHICH NOT ONLY POLISHES BUT CLEANS AND PRESERVES THE LEATHER. IN ADDITION, THE POLISH MAKES THE LEATHER SOFT AND SUPPLE WHILE IMPARTING WATER RESISTANCE. THE POLISH IS IN THE FORM OF AN EMULSION WHICH CONSISTS ESSENTIALLY OF WATER, A SOLVENT, A WAX, AN EMULSIFIER AND THE REACTION PRODUCT OF PARTICULAR HYDROXYL ENDBLOCKED SILOXANES AND AMINO-FUNCTIONAL SILANES.
Inventors
- 👤 James R Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:42
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26; C09; C09G; C09G1/00; C09G1/06; C09G1/08; C09G1/10; C09G1/12
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |