US2449255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work-holding device
Assignee: CLARK F ROSS
•
Filing: 1944-12-11
•
Granted: 1948-09-14
•
Expires: 1964-12-11
Abstract
No abstract record available.
Inventors
- 👤 Harold A Sneckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:18
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/02; B23Q3/10; B23Q3/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1254664A
Cited
US1301135A
Cited
US1330558A
Cited
US1895129A
Cited
US2104472A
Cited
US2113874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |