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US2483853A
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Monohydroxy dinitriles and esters thereof, and preparation of the same
Assignee: Shell Development Co
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Filing: 1947-04-07
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Granted: 1949-10-04
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Expires: 1967-04-07
Abstract
No abstract record available.
Inventors
- 👤 Curtis W Smith
- 👤 Seaver A Ballard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:35
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2397341A
Cited
US2379297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |