Patent US2587542A successfully refreshed from Google Patents.
US2587542A
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Duplicator attachment for lathes
Assignee: RK Le Blond Machine Tool Co
•
Filing: 1947-09-10
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Granted: 1952-02-26
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Expires: 1967-09-10
Abstract
No abstract record available.
Inventors
- 👤 Harold J Siekmann
- 👤 George J Kasselmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:38
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/18; B23Q2735/00; B23Q2735/02; B23Q2735/08; B23Q2735/082; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US253410A
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US502401A
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US593359A
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US602449A
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US1195293A
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US1314744A
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US1635285A
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US2051127A
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US2437570A
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US2559138A
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US2553984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |