US2417355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation of hydrocarbons with addition of acetone-methyl alcohol
Assignee: Aluminum Plant & Vessel Co Ltd
•
Filing: 1941-06-09
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Granted: 1947-03-11
•
Expires: 1961-06-09
Abstract
No abstract record available.
Inventors
- 👤 Dummett George Anthony
- 👤 Ralph Sydney Jamieson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:11
CPC Classifications
C; C10; C10G; C10G7/00; C10G7/08
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) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |