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US2451818A
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Vinylphenoxthines and method of preparing the same
Assignee: General Electric Co
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Filing: 1947-05-29
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Granted: 1948-10-19
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Expires: 1967-05-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph G Flowers
- 👤 Leola W Flowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:52
CPC Classifications
C; C07; C07D; C07D327/00; C07D327/02; C07D327/06; C07D327/08; C08; C08F; C08F28/00; C08F28/06
Claims Analysis
Total Claims: 0
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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) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |