US2562277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic lens directive antenna system
Assignee: AT&T Inc
•
Filing: 1946-04-08
•
Granted: 1951-07-31
•
Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 Winston E Kock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:05
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/062; H01Q15/00; H01Q15/02; H01Q15/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1332410A
Cited
US1496652A
Cited
US1958996A
Cited
US2035827A
Cited
US2283935A
Cited
US2309626A
Cited
US2376428A
Cited
US2405242A
Cited
US2415807A
Cited
US2415352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |