Patent US2423243A successfully refreshed from Google Patents.
US2423243A
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US
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Two-speed drive mechanism
Assignee: Jones and Lamson Machine Co
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Filing: 1943-06-28
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Granted: 1947-07-01
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Expires: 1963-06-28
Abstract
No abstract record available.
Inventors
- 👤 John E Lovely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:09
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q2705/00; B23Q2705/005; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/1914
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) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |