Patent US3494233A successfully refreshed from Google Patents.
US3494233A
Expired / Lapsed
US
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Cutting apparatus for pipes,round iron bars and various steel shapes
Assignee: DIC Corp
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Filing: 1968-05-02
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Granted: 1970-02-10
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Expires: 1988-05-02
Abstract
No abstract record available.
Inventors
- 👤 Riichi Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:22
CPC Classifications
B; B23; B23D; B23D23/00; B23D23/04; B23D21/00; B23D21/14; Y; Y10; Y10T; Y10T83/00; Y10T83/404; Y10T83/416
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) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |