US2942003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing naphtho [1, 2-d]-thiazoles
Assignee: GAF Chemicals Corp
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Filing: 1957-06-06
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Granted: 1960-06-21
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Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Copeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:12
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A PROCESS OF PREPARING A LOWER 2-ALKYLNAPHTHO(1,2-D)THIAZOLE WHICH COMPRISES HEATING A LOWER ALKYL THIOAMIDE OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
19 words
A PROCESS OF PREPARING A LOWER 2-ALKYLNAPHTHO(1,2-D)THIAZOLE WHICH COMPRISES HEATING A LOWER ALKYL THIOAMIDE OF THE FOLLOWING GENERAL FORMULA:
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |