US2591695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency radiator apparatus and resonator
Assignee: Unisys Corp
•
Filing: 1943-01-06
•
Granted: 1952-04-08
•
Expires: 1963-01-06
Abstract
No abstract record available.
Inventors
- 👤 William W Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:19
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q13/04; H01P; H01P7/00; H01P7/06; H01Q13/10; H01Q13/18
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |