US2983743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New and improved rodenticides
Assignee: Individual
•
Filing: 1958-11-28
•
Granted: 1961-05-09
•
Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Galat Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:09
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/85; C07C45/45; C07C45/455; C07C49/00; C07C49/587; C07C49/657; C07C49/665; C07C49/67; C07C49/703; C07C49/747
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
PROCESS FOR THE PREPARATION OF NEW COMPOSITIONS OF MATTER INCLUDING: FORMING A MULTIVALENT METAL SALT OF A CRUDE 2-ACYL 1,3-INDANDIONE, DISSOLVING SAID MULTIVALENT METAL SALT IN AN ALCOHOL WHEREBY AN ALCOHOL ADDUCT OF THE MULTIVALENT METAL SALT IS FORMED, CRYSTALLIZING THE RESULTING SOLUTION TO PRECIPITATE THE ALCOHOL ADDUCT IN SOLID FORM, SEPARATING THE SOLID ALCOHOL ADDUCT FROM THE MOTHER LIQUOR AND WASHING THE SOLID ALCOHOL ADDUCT WITH AN ORGANIC SOLVENT TO REMOVE IMPURITIES ORIGINALLY ASSOCIATED WITH THE CRUDE 2-ACYL 1,3-INDANDIONE WHEREBY THE SOLID ALCOHOL ADDUCT OF THE MULTIVALENT METAL SALT OF THE 2-ACYL 1,3-INDANDIONE IS OBTAINED IN ESSENTIALLY PURE FORM.
Claim 2
Dependent Claim
100 words
PROCESS FOR THE PREPARATION OF NEW COMPOSITIONS OF MATTER INCLUDING: FORMING A MULTIVALENT METAL SALT OF A CRUDE 2-ACYL 1,3-INDANDIONE, DISSOLVING SAID MULTIVALENT METAL SALT IN AN ALCOHOL WHEREBY AN ALCOHOL ADDUCT OF THE MULTIVALENT METAL SALT IS FORMED, CRYSTALLIZING THE RESULTING SOLUTION TO PRECIPITATE THE ALCOHOL ADDUCT IN SOLID FORM, SEPARATING THE SOLID ALCOHOL ADDUCT FROM THE MOTHER LIQUOR AND WASHING THE SOLID ALCOHOL ADDUCT WITH AN ORGANIC SOLVENT TO REMOVE IMPURITIES ORIGINALLY ASSOCIATED WITH THE CRUDE 2-ACYL 1,3-INDANDIONE WHEREBY THE SOLID ALCOHOL ADDUCT OF THE MULTIVALENT METAL SALT OF THE 2-ACYL 1,3-INDANDIONE IS OBTAINED IN ESSENTIALLY PURE FORM.
Claim 3
Dependent Claim
15 words
THE PROCESS OF CLAIM 1 IN WHICH SAID MULTIVALENT METAL SALT IS CUPRIC 2-ISOVALERYL 1,3-INDANDIONE.
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |