US2432876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system
Assignee: Westinghouse Electric Corp
•
Filing: 1945-07-02
•
Granted: 1947-12-16
•
Expires: 1965-07-02
Abstract
No abstract record available.
Inventors
- 👤 William H Formhals
- 👤 Frank C Fennell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:34
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/042; B65H23/18; B65H23/195; B65H23/198
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1977197A
Cited
US865819A
Cited
US865821A
Cited
FR443744A
Cited
US2165127A
Cited
US2147421A
Cited
US2246294A
Cited
US2305937A
Cited
US2283121A
Cited
US2323741A
Cited
US2379132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |