US2937183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing 4-amino-2-methyl thiazole
Assignee: Unisys Corp
•
Filing: 1958-12-04
•
Granted: 1960-05-17
•
Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 Stevens George De
- 👤 Robert H Sprague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:36
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/38; C07D277/40; C09; C09B; C09B23/00; C09B23/02; C09B23/10; C09B23/14; C09B23/145; C09B23/146; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A PROCESS FOR PREPARING 2-METHYL-4-AMINO THIAZOLE CONSISTING OF REACTING 2,3-DIBROMO P-DIOXANE WITH THIOACETAMIDE AT 0* CENTIGRADE UNDER ANHYDROUS CONDITIONS.
Claim 2
Dependent Claim
19 words
A PROCESS FOR PREPARING 2-METHYL-4-AMINO THIAZOLE CONSISTING OF REACTING 2,3-DIBROMO P-DIOXANE WITH THIOACETAMIDE AT 0* CENTIGRADE UNDER ANHYDROUS CONDITIONS.
References Cited (Backward Citations)
US2756227A
Cited
US2882160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |