US2940503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for straightening round workpieces
Assignee: Individual
•
Filing: 1958-07-14
•
Granted: 1960-06-14
•
Expires: 1978-07-14
Abstract
No abstract record available.
Inventors
- 👤 Finn B Abramsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:00
CPC Classifications
B; B21; B21D; B21D3/00; B21D3/02; B21D3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1032679A
Cited
US1441707A
Cited
US1467880A
Cited
US1979133A
Cited
US1851063A
Cited
US2206759A
Cited
GB634987A
Cited
US2838090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |