US3119690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
wagner
Assignee: —
•
Filing: —
•
Granted: 1964-01-28
•
Expires: 1981-01-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:02
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/20; B22F9/22; B22F3/00; B22F3/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PROCESS OF CONTINUOUSLY PRODUCING DENSE METALLIC COPPER WHICH COMPRISES REDUCING DOWNWARDLY FLOWING COPPER OXIDE BY AN UPWARDLY FLOWING CURRENT OF WATER GAS CONTAINING CARBON MONOXIDE AND HYDROGEN RETAINING THE FINELY DIVIDED REDUCED COPPER IN AN INTERMEDIATE RECEPTACLE AND THEN PASSING THE FINELY DIVIDED COPPER THROUGH A SCREW COMPACTING ARRANGEMENT TO DENSIFY THE SMAE AT A PRESSURE OF ABOUT 25000 POUNDS PER SQUARE INCH, SAID FINELY DIVIDED COPPER BEING SUBJECTED TO ADDITIONAL CONTACT WITH THE GAS IN SAID INTERMEDIATE RECEPTACLE AND RETAINING THE HEAT OF REDUCTION WHEN PASSED INTO SAID SCREW COMPACTING ARRANGEMENT.
Claim 2
Dependent Claim
93 words
A PROCESS OF CONTINUOUSLY PRODUCING DENSE METALLIC COPPER WHICH COMPRISES REDUCING DOWNWARDLY FLOWING COPPER OXIDE BY AN UPWARDLY FLOWING CURRENT OF WATER GAS CONTAINING CARBON MONOXIDE AND HYDROGEN RETAINING THE FINELY DIVIDED REDUCED COPPER IN AN INTERMEDIATE RECEPTACLE AND THEN PASSING THE FINELY DIVIDED COPPER THROUGH A SCREW COMPACTING ARRANGEMENT TO DENSIFY THE SMAE AT A PRESSURE OF ABOUT 25000 POUNDS PER SQUARE INCH, SAID FINELY DIVIDED COPPER BEING SUBJECTED TO ADDITIONAL CONTACT WITH THE GAS IN SAID INTERMEDIATE RECEPTACLE AND RETAINING THE HEAT OF REDUCTION WHEN PASSED INTO SAID SCREW COMPACTING ARRANGEMENT.
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) | 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 |