US2614029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of silver nitrate solutions
Assignee: EIDP Inc
•
Filing: 1951-02-21
•
Granted: 1952-10-14
•
Expires: 1971-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jerome A Moede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:36
CPC Classifications
C; C01; C01G; C01G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS OF PURIFYING AN AQUEOUS SOLUTION OF SILVER NITRATE CONTAINING SMALL AMOUNTS OF HEAVY METAL AND NOBLE METAL IMPURITIES WHICH COMPRISES TREATING SAID SOLUTION, WITH SILVER OXIDE TO ATTAIN A PH OF AT LEAST 6.1, SEPARATING THE SILVER NITRATE SOLUTION FROM THE PRECIPITATE AND PASSING THE RESULTING SOLUTION INTO CONTACT WITH AT LEAST ONE WATER-INSOLUBLE POROUS SOLID ADSORBENT, AT LEAST ONE OF WHICH IS AN ADSORBENT TAKEN FROM THE GROUP CONSISTING OF ALUMINA AND MAGNESIA.
Claim 2
Dependent Claim
76 words
A PROCESS OF PURIFYING AN AQUEOUS SOLUTION OF SILVER NITRATE CONTAINING SMALL AMOUNTS OF HEAVY METAL AND NOBLE METAL IMPURITIES WHICH COMPRISES TREATING SAID SOLUTION, WITH SILVER OXIDE TO ATTAIN A PH OF AT LEAST 6.1, SEPARATING THE SILVER NITRATE SOLUTION FROM THE PRECIPITATE AND PASSING THE RESULTING SOLUTION INTO CONTACT WITH AT LEAST ONE WATER-INSOLUBLE POROUS SOLID ADSORBENT, AT LEAST ONE OF WHICH IS AN ADSORBENT TAKEN FROM THE GROUP CONSISTING OF ALUMINA AND MAGNESIA.
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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |