US2713121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio scanning apparatus
Assignee: Unisys Corp
•
Filing: 1947-10-16
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Granted: 1955-07-12
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Expires: 1967-10-16
Abstract
No abstract record available.
Inventors
- 👤 Lyman Joseph
- 👤 Jr Joe J Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:36
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/04; H01Q3/06; B; B06; B06B; B06B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1109969A
Cited
US1548958A
Cited
US1934078A
Cited
US1918358A
Cited
US2151549A
Cited
US2410666A
Cited
US2419024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |