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US2448827A
Expired / Lapsed
US
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Sectional match plate
Assignee: Individual
•
Filing: 1946-05-20
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Granted: 1948-09-07
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Expires: 1966-05-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Emil Edward Reder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:56
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US230979A
Cited
US985154A
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US1043977A
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US1820405A
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US2070564A
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US2070945A
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US2328333A
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US2394394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |