Patent US2452599A successfully refreshed from Google Patents.
US2452599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for target aircraft
Assignee: Individual
•
Filing: 1943-07-09
•
Granted: 1948-11-02
•
Expires: 1963-07-09
Abstract
No abstract record available.
Inventors
- 👤 Charles L Paulus
- 👤 Howard A Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:23
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/085; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB191007870A
Cited
US1277590A
Cited
US1821273A
Cited
US1899079A
Cited
US2192046A
Cited
US2129930A
Cited
US2186653A
Cited
US2227375A
Cited
US2272817A
Cited
US2307781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |