Patent US1690567A successfully refreshed from Google Patents.
US1690567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power chucking device
Assignee: BULLARD MACHINE TOOL Co
•
Filing: 1923-12-12
•
Granted: 1928-11-06
•
Expires: 1943-12-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward P Bullard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:49
CPC Classifications
B; B23; B23Q; B23Q39/00; B23Q39/04; B23Q39/042; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16195; B23B31/162; B23B31/16212; B23B31/16287; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1961; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5128
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-11-06 | 1932-05-07 | 1932-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-06 | 1936-05-07 | 1936-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-06 | 1940-05-07 | 1940-11-06 | $7700.00 | Window Closed / Lapsed |