Patent US3810949A successfully refreshed from Google Patents.
US3810949A
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US
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Intermolecular addition
Assignee: Ethyl Corp
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Filing: 1972-09-25
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Granted: 1974-05-14
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Expires: 1992-09-25
Abstract
Abstract HYDROCYL MAGNESIUM COMPOUNDS (RMGX, R2MG) REACT WITH POLYCYCLIC COMPOUNDS CONTAINING ONE OR MORE ETHENO BRIDGES (E.G, BICYCLO(2,2.1) HEPT-2-ENE, BICYCLO(2.2.1)HEPTA-2,5-DIENE) TO PRODUCE VARIOUS NOVE POLYCYCLIC ORGANOMAGNESIUM COMPOUNDS. THESE IN TURN CAN BE SUBJECTED TO VARIOUS REACTIONS TO PRODUCE OTHER PRODUCTS.
Inventors
- 👤 L Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:07
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/26; C07C1/00; C07C1/32; C07C1/325; C07C1/326; C07C2/00; C07C2/86; C07C35/00; C07C35/22; C07C35/23; C07C35/28; C07C35/29; C07C2603/00; C07C2603/56; C07C2603/58; C07C2603/60; C07C2603/66; C07C2603/68
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |