US3151972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of inorganic fiber as a binder in a pelletized ore
Assignee: Johns Manville Corp
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Filing: 1958-10-28
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Granted: 1964-10-06
•
Expires: 1978-10-28
Abstract
No abstract record available.
Inventors
- 👤 William C Streih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:43
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/242; C22B1/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF PELLETIZING PARTICULATE IRON OXIDE ORE CONCENTRATES COMPRISING BINDING THE PARTICULATE ORE WITH INORGANIC FIBER, SAID METHOD CONSISTING ESSENTIALLY OF THE STEPS OF COMBINING WITH THE IRON OXIDE ORE CONCENTRATES ASBESTOS FIBER IN AMOUNT OF APPROXIMATELY 1 TO 10% BY WEIGHT OF SAID ORE, ADJUSTING THE MOISTURE CONTENT OF THE COMBINED MASS TO APPROXIMATELY 5 TO 20% BY WEIGHT OF THE TOTAL, AND PELLETIZING THE MASS.
Claim 2
Independent Claim
68 words
A METHOD OF PELLETIZING PARTICULATE IRON OXIDE ORE CONCENTRATES COMPRISING BINDING THE PARTICULATE ORE WITH INORGANIC FIBER, SAID METHOD CONSISTING ESSENTIALLY OF THE STEPS OF COMBINING WITH THE IRON OXIDE ORE CONCENTRATES ASBESTOS FIBER IN AMOUNT OF APPROXIMATELY 1 TO 10% BY WEIGHT OF SAID ORE, ADJUSTING THE MOISTURE CONTENT OF THE COMBINED MASS TO APPROXIMATELY 5 TO 20% BY WEIGHT OF THE TOTAL, AND PELLETIZING THE MASS.
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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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |