US2422825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delinting screen
Assignee: American Machine and Metals Inc
•
Filing: 1943-11-18
•
Granted: 1947-06-24
•
Expires: 1963-11-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Archibald H Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:42
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/20; D06F58/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR729916A
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US2038071A
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US2115577A
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US2328302A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |