US2416612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex combination extension lathe
Assignee: ROBERT NORD FAGERBURG
•
Filing: 1944-04-20
•
Granted: 1947-02-25
•
Expires: 1964-04-20
Abstract
No abstract record available.
Inventors
- 👤 Rex D Cavanagh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:21
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/02; B23G1/04; Y; Y10; Y10T; Y10T82/00; Y10T82/20; Y10T82/25; Y10T82/2531; Y10T82/2564; Y10T82/2566
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE29797C
Cited
US379313A
Cited
CH50390A
Cited
US1031635A
Cited
FR22029E
Cited
US1417521A
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CH217293A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-24 | 1950-08-26 | 1951-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-24 | 1954-08-26 | 1955-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-24 | 1958-08-26 | 1959-02-25 | $7700.00 | Window Closed / Lapsed |