US2473124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyallyl type alcohols and process for production thereof
Assignee: Shell Development Co
•
Filing: 1941-12-31
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Granted: 1949-06-14
•
Expires: 1961-12-31
Abstract
No abstract record available.
Inventors
- 👤 David E Adelson
- 👤 Theodore W Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:40
CPC Classifications
C; C10; C10M; C10M3/00; C08; C08F; C08F8/00; C08F8/12; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/36; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |