Patent US2275398A successfully refreshed from Google Patents.
US2275398A
Expired / Lapsed
US
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Stamping equipment for molding coal
Assignee: Beazer East Inc
•
Filing: 1938-11-19
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Granted: 1942-03-03
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Expires: 1958-11-19
Abstract
No abstract record available.
Inventors
- 👤 Koppers Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:23
CPC Classifications
C; C10; C10B; C10B45/00; C10B45/02; B; B30; B30B; B30B11/00; B30B11/02; B30B11/027; B30B15/00; B30B15/30; B30B15/302; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/906
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) | 1945-03-02 | 1945-09-01 | 1946-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-02 | 1949-09-01 | 1950-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-02 | 1953-09-01 | 1954-03-03 | $7700.00 | Window Closed / Lapsed |