US3075243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Briquetting method and apparatus
Assignee: United States Steel Corp
•
Filing: 1960-09-07
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Granted: 1963-01-29
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Expires: 1980-09-07
Abstract
No abstract record available.
Inventors
- 👤 Earl H Shipley
- 👤 Slamar Frank
- 👤 Teplitz Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:09
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; B; B30; B30B; B30B11/00; B30B11/16; Y; Y10; Y10S; Y10S425/00; Y10S425/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF BRIQUETTING FINELY DIVIDED MATERIAL COMPRISING COMPACTING THE MATERIAL INTO A CONTINUOUS BAR HAVING A SERIES OF NOTCHES SPACED ALONG THE AXIS OF THE BAR, FURTHER COMPACTING THE NOTCHED BAR EXCEPT AT THE NOTCHES TO ENABLE THE BAR TO BE BROKEN MORE EASILY AT THE NOTCHES THAN ALONG THE REMAINDER OF ITS LENGTH, AND BREAKING THE BAR AT EACH OF THE NOTCHES TO FORM INDIVIDUAL BRIQUETTES.
Claim 2
Independent Claim
68 words
A METHOD OF BRIQUETTING FINELY DIVIDED MATERIAL COMPRISING COMPACTING THE MATERIAL INTO A CONTINUOUS BAR HAVING A SERIES OF NOTCHES SPACED ALONG THE AXIS OF THE BAR, FURTHER COMPACTING THE NOTCHED BAR EXCEPT AT THE NOTCHES TO ENABLE THE BAR TO BE BROKEN MORE EASILY AT THE NOTCHES THAN ALONG THE REMAINDER OF ITS LENGTH, AND BREAKING THE BAR AT EACH OF THE NOTCHES TO FORM INDIVIDUAL BRIQUETTES.
References Cited (Backward Citations)
US9455A
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US1330434A
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DE528872C
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US2075735A
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US2183196A
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US2497212A
Cited
US2708300A
Cited
US2717419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |