Patent US2559839A successfully refreshed from Google Patents.
US2559839A
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Machine tool positioning mechanism
Assignee: Kearney and Trecker Corp
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Filing: 1947-01-10
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Granted: 1951-07-10
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Expires: 1967-01-10
Abstract
No abstract record available.
Inventors
- 👤 William K Andrew
- 👤 Arthur H Fotsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/26; B23C; B23C1/00; B23C1/04; B23C1/045; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/304648; Y10T409/30476; Y10T409/304872; Y10T409/304928; Y10T409/306664; Y10T409/306776; Y10T409/306832; Y10T409/306944; Y10T409/307168
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |