US2830067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organotin compounds and process of preparation
Assignee: Primerica Inc
•
Filing: 1954-01-18
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Granted: 1958-04-08
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Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 Hugh E Ramsden
- 👤 Elliott L Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:23
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2204; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF PREPARING A SULFUR-CONTAINING ORGANOTIN COMPOUND WHICH COMPRISES: (1) ESTERIFYING B MOLES OF A DIBASIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIBASIC ACIDS OF FORMULA HOOCR''COOH AND THEIR ANHYDRIDES, WITH A MOLES OF A HYDROXY COMPOUND OF FORMULA ROH, (2) REACTING THE REACTION PRODUCT OF (1) WITH C MOLES OF AN ORGANOTIN OXIDE OF FORMULA R"2SNO, (3) AND REACTING THE REACTION PRODUCT OF (2) WITH D MOLES OF AN ESTER SELECTED FROM THE GROUP CONSISTING OF MERCAPTOALKAANOL ESTERS OF HYDROCARBON MONOCARBOXYLIC ACIDS AND MERCATOALKANOL BORATES, WHEREIN R AND R" ARE MONOVALENT HYDROCARBON RADICALS, R'' IS A DIVALEN HYDROCARBON RADICAL,
Claim 2
Independent Claim
103 words
A METHOD OF PREPARING A SULFUR-CONTAINING ORGANOTIN COMPOUND WHICH COMPRISES: (1) ESTERIFYING B MOLES OF A DIBASIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIBASIC ACIDS OF FORMULA HOOCR''COOH AND THEIR ANHYDRIDES, WITH A MOLES OF A HYDROXY COMPOUND OF FORMULA ROH, (2) REACTING THE REACTION PRODUCT OF (1) WITH C MOLES OF AN ORGANOTIN OXIDE OF FORMULA R"2SNO, (3) AND REACTING THE REACTION PRODUCT OF (2) WITH D MOLES OF AN ESTER SELECTED FROM THE GROUP CONSISTING OF MERCAPTOALKAANOL ESTERS OF HYDROCARBON MONOCARBOXYLIC ACIDS AND MERCATOALKANOL BORATES, WHEREIN R AND R" ARE MONOVALENT HYDROCARBON RADICALS, R'' IS A DIVALEN HYDROCARBON RADICAL,
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) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |