Patent US2447962A successfully refreshed from Google Patents.
US2447962A
Expired / Lapsed
US
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Cutoff machine
Assignee: Toledo Engineering Co Inc
•
Filing: 1943-05-31
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Granted: 1948-08-24
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Expires: 1963-05-31
Abstract
No abstract record available.
Inventors
- 👤 Franz G Schwalbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:25
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/06; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0333; Y10T83/0385; Y10T83/0393; Y10T83/465; Y10T83/4766; Y10T83/4783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1242478A
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US1220201A
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US1585896A
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US1647352A
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US1868397A
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US2290837A
Cited
US2306721A
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US2332013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |