US2378604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio altimeter and panoramic reception system
Assignee: Individual
•
Filing: 1940-09-21
•
Granted: 1945-06-19
•
Expires: 1960-09-21
Abstract
No abstract record available.
Inventors
- 👤 Wallace Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:20
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/32; G; G01; G01S; G01S1/00; G01S1/02; G01S1/04
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) | 1948-06-18 | 1948-12-18 | 1949-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-18 | 1952-12-18 | 1953-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-18 | 1956-12-18 | 1957-06-19 | $7700.00 | Window Closed / Lapsed |