US2740451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offset flanging machine
Assignee: Individual
•
Filing: 1950-05-16
•
Granted: 1956-04-03
•
Expires: 1970-05-16
Abstract
No abstract record available.
Inventors
- 👤 Lloyd H Knost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:28
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2615; B21D51/263; B21D51/2638
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US436784A
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US728379A
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US848948A
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US1774155A
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US1750784A
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US2106866A
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US2460123A
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US2427003A
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US2635491A
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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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |