Patent US2093825A successfully refreshed from Google Patents.
Patent US2423440A successfully refreshed from Google Patents.
US2423440A
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Automatic control of machine tools and fabricating devices
Assignee: ACTROL Inc
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Filing: 1942-10-06
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Granted: 1947-07-08
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Expires: 1962-10-06
Abstract
No abstract record available.
Inventors
- 👤 Neergaard Leif Eric De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/42; G05B19/4202; G05B19/4205; B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q2735/00; B23Q2735/02; B23Q2735/06; B23Q2735/065; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T82/00; Y10T82/25; Y10T82/2502
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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US2029335A
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US2092142A
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US1998939A
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US2213108A
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US2087782A
Cited
US2168047A
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US2286571A
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US2278654A
Cited
US2283240A
Cited
US2322653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |