US2672472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-mercaptomercuri derivatives of cyclic-carboxamides and method of preparing same
Assignee: Mathieson Chemical Corp
•
Filing: 1951-11-13
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Granted: 1954-03-16
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Expires: 1971-11-13
Abstract
No abstract record available.
Inventors
- 👤 Harry L Yale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:54
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
COMPOUNDS OF THE CLASS CONSISTING OF: (A) COMPOUNDS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
12 words
COMPOUNDS OF THE CLASS CONSISTING OF: (A) COMPOUNDS OF THE GENERAL FORMULA
References Cited (Backward Citations)
US1895713A
Cited
US1969357A
Cited
US2300992A
Cited
GB619515A
Cited
US2581397A
Cited
US2601461A
Cited
US2557772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |