US2266747A
Expired / Lapsed
US
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Water soluble substituted aminomethylene mercapto acids and the process for their synthesis
Assignee: EIDP Inc
•
Filing: 1939-04-28
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Granted: 1941-12-23
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Expires: 1959-04-28
Abstract
No abstract record available.
Inventors
- 👤 Engelmann Max
- 👤 Havas Emeric
- 👤 Morris S Kharasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:46
CPC Classifications
C; C09; C09B; C09B15/00; C07; C07C; C07C323/00; C07C323/50; C07C323/51; C07C323/52; C07C323/62; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/28; C09B1/285; C09B1/50; C09B1/51; C09B1/515; C09B29/00; C09B29/06; C09B29/08; C09B29/0801; C09B29/0802; C09B3/00; C09B3/02; C09B3/06; C09B3/10; C09B43/00; C09B43/11
Claims Analysis
Total Claims: 0
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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) | 1944-12-22 | 1945-06-23 | 1945-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-22 | 1949-06-23 | 1949-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-22 | 1953-06-23 | 1953-12-23 | $7700.00 | Window Closed / Lapsed |