US2266262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna system for wireless communication
Assignee: Individual
•
Filing: 1939-09-13
•
Granted: 1941-12-16
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Expires: 1959-09-13
Abstract
No abstract record available.
Inventors
- 👤 Wladimir J Polydoroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
H; H01; H01Q; H01Q7/00; H01Q7/06; B; B01; B01J; B01J2/00; B01J2/02; B01J2/04; C; C05; C05C; C05C1/00; C05C1/02; H04; H04J; H04J3/00; H04J3/20; H04Q; H04Q11/00; H04Q11/04
Claims Analysis
Total Claims: 0
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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) | 1944-12-15 | 1945-06-16 | 1945-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-15 | 1949-06-16 | 1949-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-15 | 1953-06-16 | 1953-12-16 | $7700.00 | Window Closed / Lapsed |