US2771355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomerating ores in the blast furnace
Assignee: Individual
•
Filing: 1954-12-06
•
Granted: 1956-11-20
•
Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Cohen Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:54
CPC Classifications
C; C21; C21B; C21B5/00; C21B5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE PROCESS OF AGGLOMERATING IRON ORE INSIDE THE BLAST SURFACE WHICH CONSISTS OF ADDING TO THE IRON ORE BEING CHARGED INTO THE BLAST FURNACE A SOLUTION CONTAINING FROM ONE TENTH TO TEN PERCENT CEMENTING AGENT AND THEN CHARGING THE IRON AND CEMENTING AGENT INTO THE BLAST FURNACE.
Claim 2
Dependent Claim
47 words
THE PROCESS OF AGGLOMERATING IRON ORE INSIDE THE BLAST SURFACE WHICH CONSISTS OF ADDING TO THE IRON ORE BEING CHARGED INTO THE BLAST FURNACE A SOLUTION CONTAINING FROM ONE TENTH TO TEN PERCENT CEMENTING AGENT AND THEN CHARGING THE IRON AND CEMENTING AGENT INTO THE BLAST FURNACE.
References Cited (Backward Citations)
US520377A
Cited
US794153A
Cited
US1103400A
Cited
US1154980A
Cited
US1334331A
Cited
US1536033A
Cited
US1680107A
Cited
US1994379A
Cited
US2363371A
Cited
US2373244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |