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US2623974A
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Process for extruding flanges around holes in metal sheets and welding nuts thereto
Assignee: Motors Liquidation Co
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Filing: 1949-10-25
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Granted: 1952-12-30
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Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Frank M Prucha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:21
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/06; F16B37/061; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1604531A
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US1925753A
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US2073694A
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US2213630A
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US2245298A
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US2321201A
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US2372772A
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US2477430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |