US2864804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxy-substituted allylic ethers and derivatives
Assignee: Shell Development Co
•
Filing: 1953-12-17
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Granted: 1958-12-16
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Expires: 1973-12-17
Abstract
No abstract record available.
Inventors
- 👤 Edward C Shokal
- 👤 Roy W H Tess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:28
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08F; C08F16/00; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1444; C08G59/1494; C08G63/00; C08G63/66; C08G63/668; C08G63/676; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/3311; C08G65/3312; C08G65/332; C08G65/3322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
COMPOUNDS OF THE GROUP CONSISTING OF (1) HYDROXYSUBSTITUTED 2-ALKENYL ETHERS OF THE FORMULA
Claim 2
Dependent Claim
13 words
COMPOUNDS OF THE GROUP CONSISTING OF (1) HYDROXYSUBSTITUTED 2-ALKENYL ETHERS OF THE FORMULA
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) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |