US2865731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iron ore briquette with paper pulp binder
Assignee: Minerals & Chemicals Corp Of A
•
Filing: 1954-06-25
•
Granted: 1958-12-23
•
Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 John H Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:11
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
THE METHOD OF BRIQUETTING FINELY DIVIDED IRON OXIDE MATERIAL WHICH COMPRISES MIXING THE SAID MATERIAL WITH A THICK AQUEOUS PULP OF CELLULOSE FIBERS AND BRIQUETTING THE RESULTING MIXTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |