Patent US1400272A successfully refreshed from Google Patents.
US1400272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck for machine-tools
Assignee: HANNIFIN Manufacturing Co
•
Filing: 1917-12-20
•
Granted: 1921-12-13
•
Expires: 1937-12-20
Abstract
No abstract record available.
Inventors
- 👤 Russell E Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:21
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/028; B23B31/10; B23B31/12; B23B31/16; B23B31/16158; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1981; Y10T279/34; Y10T279/3487
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) | 1924-12-12 | 1925-06-13 | 1925-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-12-12 | 1929-06-13 | 1929-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-12-12 | 1933-06-13 | 1933-12-13 | $7700.00 | Window Closed / Lapsed |