US2644602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosure formed by extruded side walls having an integral flange
Assignee: Leeds and Northrup Co
•
Filing: 1947-06-28
•
Granted: 1953-07-07
•
Expires: 1967-06-28
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:43
CPC Classifications
G; G01; G01R; G01R11/00; G01R11/02; G01R11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US176420A
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US324443A
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US513044A
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FR329281A
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US1210688A
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US1655793A
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GB295458A
Cited
US1802829A
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US1984232A
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US2144318A
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US2316384A
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US2388297A
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US2471441A
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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) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |