US2866648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Springs for feed chucks
Assignee: Hardinge Inc
•
Filing: 1955-10-25
•
Granted: 1958-12-30
•
Expires: 1975-10-25
Abstract
No abstract record available.
Inventors
- 👤 Hubert J Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:13
CPC Classifications
B; B23; B23B; B23B13/00; B23B13/12; B23B13/123; B23B13/125; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17119; Y10T279/17957
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2148173A
Cited
US2158728A
Cited
US2287457A
Cited
US2325691A
Cited
US2574869A
Cited
US2786687A
Cited
US2786686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |