Patent US2816136A successfully refreshed from Google Patents.
US2816136A
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Process for the production of alkali and alkaline-earth-metal salts of cyanodithioimidocarbonic acid
Assignee: Buckman Laboratories Inc
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Filing: 1956-10-22
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Granted: 1957-12-10
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Expires: 1976-10-22
Abstract
No abstract record available.
Inventors
- 👤 John D Pera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:20
CPC Classifications
C; C07; C07C; C07C333/00; C07C333/14; C07C333/18; C07C333/26; C01; C01C; C01C3/00; C01C3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR THE PRODUCTION OF A WATER-SOLUBLE SALT OF CYANODITHIOIMIDOCARBONIC ACID WHICH COMPRISES THE TREATMENT OF AQUEOUS DISPERSION OF AN ALKALINEEARTH-METAL CYANAMIDE WITH CARBON DISULFIDE AT A TEMPERATURE ABOVE APPROXIMATELY 100*F., AND SUBSEQUENTLY RECOVERING THE RESULTING WATER-SOLUBLE SALT OF CYANODITHIOMIDOCARBONIC ACID.
Claim 2
Dependent Claim
42 words
A PROCESS FOR THE PRODUCTION OF A WATER-SOLUBLE SALT OF CYANODITHIOIMIDOCARBONIC ACID WHICH COMPRISES THE TREATMENT OF AQUEOUS DISPERSION OF AN ALKALINEEARTH-METAL CYANAMIDE WITH CARBON DISULFIDE AT A TEMPERATURE ABOVE APPROXIMATELY 100*F., AND SUBSEQUENTLY RECOVERING THE RESULTING WATER-SOLUBLE SALT OF CYANODITHIOMIDOCARBONIC ACID.
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |