Patent US2634296A successfully refreshed from Google Patents.
US2634296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of beta monoethers of
Assignee: —
•
Filing: —
•
Granted: 1953-04-07
•
Expires: 1970-04-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:54
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/23; C07C41/00; C07C41/01; C07C41/05; C07C41/06; C07C41/16; C07C43/03; C07C43/14; C07C43/15; C07C43/178
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2608586A
Cited
US1259758A
Cited
US1466665A
Cited
US1402317A
Cited
US2148304A
Cited
US2318032A
Cited
US2543952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |