US3119658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum cladding dissolution
Assignee: Individual
•
Filing: 1960-12-28
•
Granted: 1964-01-28
•
Expires: 1980-12-28
Abstract
No abstract record available.
Inventors
- 👤 Wallace W Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:54
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/34; G21C19/38; C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0221; C22B60/0226; C22B60/0239; C23; C23F; C23F1/00; C23F1/44; G21C19/42; G21C19/44; G21C19/46; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A METHOD OF DISSOLVING ALUMINUM COMPRISING IMMERSING IT IN 2 TO 7 M NITRIC ACID AND ADDING 0.001 TO 0.01 M MERCURIC NITRATE AS A CATALYST AND, AS AN ANTISYNERGISTIC AGENT, NICKELOUS NITRATE IN A MOLAR RATIO TO THE MERCURIC NITRATE OF ABOVE ABOUT 2 1/2.
Claim 2
Independent Claim
46 words
A METHOD OF DISSOLVING ALUMINUM COMPRISING IMMERSING IT IN 2 TO 7 M NITRIC ACID AND ADDING 0.001 TO 0.01 M MERCURIC NITRATE AS A CATALYST AND, AS AN ANTISYNERGISTIC AGENT, NICKELOUS NITRATE IN A MOLAR RATIO TO THE MERCURIC NITRATE OF ABOVE ABOUT 2 1/2.
References Cited (Backward Citations)
GB590381A
Cited
US2901343A
Cited
US2698305A
Cited
US2737445A
Cited
US2891840A
Cited
US2943987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |