US2599549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alpha-carbalkoxyalkyl methacrylates
Assignee: United States Department of Agriculture
•
Filing: 1950-03-21
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Granted: 1952-06-10
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Expires: 1970-03-21
Abstract
No abstract record available.
Inventors
- 👤 Charles H Fisher
- 👤 Edward M Filachione
- 👤 Martin L Fein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/30; C07C67/317; C07C67/327
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
THE PROCESS OF PRODUCING THE METHACRYLATE OF METHYL LACTATE WHICH COMPRISES THERMALLY DECOMPOSING THE ACETOXYISOBUTYRATE OF METHYL LACTATE AT ABOUT 450* TO 550* C.
Claim 2
Dependent Claim
24 words
THE PROCESS OF PRODUCING THE METHACRYLATE OF METHYL LACTATE WHICH COMPRISES THERMALLY DECOMPOSING THE ACETOXYISOBUTYRATE OF METHYL LACTATE AT ABOUT 450* TO 550* C.
References Cited (Backward Citations)
US2367798A
Cited
US2388440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |