Patent US2469920A successfully refreshed from Google Patents.
US2469920A
Expired / Lapsed
US
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Machine tool
Assignee: LAMINA DIES AND TOOLS Inc
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Filing: 1944-09-16
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Granted: 1949-05-10
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Expires: 1964-09-16
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand J Henkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:57
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/305544; Y10T409/305656; Y10T409/305768; Y10T409/30868; Y10T409/308792
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US299496A
Cited
US360530A
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US846728A
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US1084544A
Cited
US1745573A
Cited
US1687350A
Cited
US1968514A
Cited
US2277997A
Cited
US2414033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |