US2809734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically actuated attachment for power-driven tool chucks
Assignee: Individual
•
Filing: 1955-03-04
•
Granted: 1957-10-15
•
Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Clinton L Graybill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:05
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/04; F16D7/042; F16D7/044; B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B25B23/1453; F16D25/00; F16D25/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2719621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |