Patent US3179713A successfully refreshed from Google Patents.
US3179713A
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Organopolysiloxane isocyanate composition for imparting scuff resistance and water repellency to leather
Assignee: Dow Silicones Corp
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Filing: 1962-03-26
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Granted: 1965-04-20
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Murrel A Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:24
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/61; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; C08G77/392; C14; C14C; C14C11/00; C14C11/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF
Claim 2
Dependent Claim
7 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF
References Cited (Backward Citations)
US2527590A
Cited
US2728736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |