Patent US3583945A successfully refreshed from Google Patents.
US3583945A
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Mercury catalysis for preparation of urethanes
Assignee: 3M Co
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Filing: 1962-06-04
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Granted: 1971-06-08
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Expires: 1982-06-04
Abstract
Abstract MONOORGANO MERCURIC COMPOUNDS ARE USED AS CATALYSTS IN THE URETHANE LINKAGE FORMING REACTION BETWEEN ISOCYANATE AND HYDROXYL GROUPS.
Inventors
- 👤 Janis Robins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:10
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/22; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C08G18/222; C08G18/28; C08G18/40; C08G18/64; C08G18/6484; C08G79/00; C08G79/08; C10; C10M; C10M129/00; C10M129/86; C10M129/95; C10M139/00; D; D06; D06M; D06M13/00; D06M13/322; D06M13/395; D06M13/398; Y; Y10; Y10S; Y10S528/00; Y10S528/903
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |