US2456439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for the manufacture of metal grains
Assignee: Individual
•
Filing: 1945-03-17
•
Granted: 1948-12-14
•
Expires: 1965-03-17
Abstract
No abstract record available.
Inventors
- 👤 Morane Roger
- 👤 Martinet Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:53
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08; B22F2999/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US194271A
Cited
US228481A
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US253764A
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US826099A
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US857756A
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US1647194A
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US1762693A
Cited
US1866682A
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US2287029A
Cited
US2224424A
Cited
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 |