Patent US3259643A successfully refreshed from Google Patents.
US3259643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsymmetrical salts of alkylene bis dithiocarbamic acids and process of making the same
Assignee: Individual
•
Filing: 1963-03-15
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Granted: 1966-07-05
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Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:42
CPC Classifications
C; C07; C07C; C07C333/00; C07C333/14; C07C333/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE PROCESS OF MAKING HEAVY METAL SALTS OF DIMETALLIC DIALKYLENE TETRA DITHIOCARBAMATES WHEREIN A SOLUTION CONSISTING OF ONE MOLE EACH OF TWO DIFFERENT HEAVY METAL SALTS IS REACTED WITH ONE MOLE OF A DIALKALI ALKYLENE BIS DITHIOCARBAMATE AND ONE MOLE OF A DIFFERENT DIALKALI ALKYLENE BIS DITHICARBAMATE WHEREIN THE DIFFERENT DIALKALI ALKYLENE BIS DITHICARBAMATE EACH CONTAINS TWO DIFFERENT ALKALI METALS AND THEIR ALKYLENE GROUPS ARE DIFFERENT FROM EACH OTHER, SAID ALKYLENE GROUPS CONTAINING FROM 2 TO 6 CARBON ATOMS.
Claim 2
Dependent Claim
79 words
THE PROCESS OF MAKING HEAVY METAL SALTS OF DIMETALLIC DIALKYLENE TETRA DITHIOCARBAMATES WHEREIN A SOLUTION CONSISTING OF ONE MOLE EACH OF TWO DIFFERENT HEAVY METAL SALTS IS REACTED WITH ONE MOLE OF A DIALKALI ALKYLENE BIS DITHIOCARBAMATE AND ONE MOLE OF A DIFFERENT DIALKALI ALKYLENE BIS DITHICARBAMATE WHEREIN THE DIFFERENT DIALKALI ALKYLENE BIS DITHICARBAMATE EACH CONTAINS TWO DIFFERENT ALKALI METALS AND THEIR ALKYLENE GROUPS ARE DIFFERENT FROM EACH OTHER, SAID ALKYLENE GROUPS CONTAINING FROM 2 TO 6 CARBON ATOMS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |