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US3251871A
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Process for the isolation of pure, watersoluble alkyl tin trihalides
Assignee: Hoechst AG
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Filing: 1962-11-13
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Granted: 1966-05-17
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Expires: 1982-11-13
Abstract
No abstract record available.
Inventors
- 👤 Dorfelt Christoph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:35
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A METHOD OF ISOLATING PURE, WATER-SOLUBLE ALKYL TIN TRIHALIDES OF THE FORMULA
Claim 2
Independent Claim
12 words
A METHOD OF ISOLATING PURE, WATER-SOLUBLE ALKYL TIN TRIHALIDES OF THE FORMULA
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) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |