US3419573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-chloro-4-oxy-1,2,5-thiadiazoles, and a process for preparing same
Assignee: Merck and Co Inc
•
Filing: 1965-10-15
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Granted: 1968-12-31
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Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard M Weinstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A 1,2,5-THIADIAZOLE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A 1,2,5-THIADIAZOLE COMPOUND HAVING THE FORMULA
Claim 3
Independent Claim
9 words
THE METHOD FOR PREPARING A COMPOUND OF THE FORMULA
Claim 4
Independent Claim
9 words
THE METHOD FOR PREPARING A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |