US2481945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolholding chuck
Assignee: Springfield Detail & Machine P
•
Filing: 1944-10-30
•
Granted: 1949-09-13
•
Expires: 1964-10-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Panyard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/107; B23B31/1071; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191410224A
Cited
US1174997A
Cited
US1345583A
Cited
FR580001A
Cited
US1582010A
Cited
US1636421A
Cited
DE658792C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |