US2778056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for agglomerating finely divided solid material
Assignee: Oglebay Norton Co
•
Filing: 1952-03-27
•
Granted: 1957-01-22
•
Expires: 1972-03-27
Abstract
No abstract record available.
Inventors
- 👤 Ira H Wynne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:25
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; C22B1/2406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1540162A
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US1883112A
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US1980130A
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US2027932A
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US2380945A
Cited
US2435495A
Cited
US2411873A
Cited
US2422989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |