Patent US2677690A successfully refreshed from Google Patents.
US2677690A
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Reaction products of 3-aryl-5-mercapto-1, 3, 4-thiadiazole-2(3)-thiones and nu-substituted thiocarbamyl halides and their preparation
Assignee: Sharples Chemicals Inc
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Filing: 1952-02-11
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Granted: 1954-05-04
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Expires: 1972-02-11
Abstract
No abstract record available.
Inventors
- 👤 Roland H Goshorn
- 👤 Jr William W Levis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:48
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
ORGANIC COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
ORGANIC COMPOUNDS HAVING 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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |