Patent DE34312C successfully refreshed from Google Patents.
Patent US2415801A successfully refreshed from Google Patents.
US2415801A
Expired / Lapsed
US
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Pattern controlled machine tool
Assignee: Kearney and Trecker Corp
•
Filing: 1939-01-06
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Granted: 1947-02-11
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Expires: 1959-01-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Armitage
- 👤 Theodore F Eserkain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:56
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/102; B23Q35/103; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/301904; Y10T409/30196; Y10T409/302072; Y10T409/302128; Y10T409/30224; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2554; Y10T82/2556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1301220A
Cited
US1406866A
Cited
US1385966A
Cited
US1597741A
Cited
US1817036A
Cited
US1716115A
Cited
US1812871A
Cited
US2102227A
Cited
US2086915A
Cited
US2116593A
Cited
US2050127A
Cited
US2047162A
Cited
US2157471A
Cited
US2226677A
Cited
US2263764A
Cited
US2192370A
Cited
US2216550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-10 | 1950-08-12 | 1951-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-10 | 1954-08-12 | 1955-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-10 | 1958-08-12 | 1959-02-11 | $7700.00 | Window Closed / Lapsed |