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US2884393A
Expired / Lapsed
US
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Organosilicon compositions containing beta-dicarbonyl zirconium compounds and leather article treated therewith
Assignee: Dow Silicones Corp
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Filing: 1957-01-23
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Granted: 1959-04-28
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Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 John W Gilkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:53
CPC Classifications
C; C14; C14C; C14C9/00; Y; Y10; Y10T; Y10T428/00; Y10T428/4935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A COMPOSITION OF MATTER COMPRISING (1) FROM 15 TO 50% BY WEIGHT OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
18 words
A COMPOSITION OF MATTER COMPRISING (1) FROM 15 TO 50% BY WEIGHT OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2728736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |