US1302011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing methyl alcohol from alkyl formates.
Assignee: Individual
•
Filing: 1918-12-06
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Granted: 1919-04-29
•
Expires: 1938-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jens Anton Christiansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/147; C07C29/149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1922-04-28 | 1922-10-28 | 1923-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-04-28 | 1926-10-28 | 1927-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-04-28 | 1930-10-28 | 1931-04-29 | $7700.00 | Window Closed / Lapsed |