Patent US2455980A successfully refreshed from Google Patents.
US2455980A
Expired / Lapsed
US
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Split roll for briquetting machines or the like
Assignee: American Briquet Co
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Filing: 1947-09-05
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Granted: 1948-12-14
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Expires: 1967-09-05
Abstract
No abstract record available.
Inventors
- 👤 Dallas George Mifflin
- 👤 Bernard M Fine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:49
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/16; B30B11/165; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/907; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1942; Y10T407/1944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |