US2552459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mill screw motor control
Assignee: Individual
•
Filing: 1947-02-14
•
Granted: 1951-05-08
•
Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Blaine M Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:03
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US404651A
Cited
US1133300A
Cited
US1163565A
Cited
US2069632A
Cited
US1967732A
Cited
US1969536A
Cited
US2289410A
Cited
US2274268A
Cited
US2317468A
Cited
US2341931A
Cited
US2391881A
Cited
US2511271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |