Patent US2663204A successfully refreshed from Google Patents.
US2663204A
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US
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Machine for making frames
Assignee: Detroit Steel Products Co Inc
•
Filing: 1947-10-24
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Granted: 1953-12-22
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Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Bert E Rockhoff
- 👤 Mayer Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:06
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/74; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/49899
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1129920A
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US1166711A
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US1275576A
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US1469864A
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US1883906A
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US1954545A
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US2350875A
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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) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |