US2830232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control apparatus
Assignee: Superior Electric Co
•
Filing: 1955-06-02
•
Granted: 1958-04-08
•
Expires: 1975-06-02
Abstract
No abstract record available.
Inventors
- 👤 William P Carpenter
- 👤 Gustav O Fredrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:41
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; Y; Y10; Y10S; Y10S315/00; Y10S315/03
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US602963A
Cited
US2040684A
Cited
US2009787A
Cited
US2458277A
Cited
US2665394A
Cited
US2683241A
Cited
US2729752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |