US2942383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine device
Assignee: Sheffield Corp
•
Filing: 1957-10-17
•
Granted: 1960-06-28
•
Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 George C Brown
- 👤 Richard N Roney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:29
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/001; B23Q11/0017; B23Q15/00; B23Q15/007; B23Q15/013; B23Q5/00; B23Q5/22; B24; B24B; B24B1/00; B24B1/04; B24B47/00; B24B47/20
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |