US2298858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control element
Assignee: RCA Corp
•
Filing: 1940-05-01
•
Granted: 1942-10-13
•
Expires: 1960-05-01
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Creager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1616; Y10T403/1624; Y10T403/49; Y10T403/4966
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) | 1945-10-12 | 1946-04-13 | 1946-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-12 | 1950-04-13 | 1950-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-12 | 1954-04-13 | 1954-10-13 | $7700.00 | Window Closed / Lapsed |