Patent US2161570A successfully refreshed from Google Patents.
US3434142A
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Electronically controlled azimuth scanning antenna system
Assignee: GTE Sylvania Inc
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Filing: 1966-12-30
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Granted: 1969-03-18
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 Stephen N Andre
- 👤 Ronald D Hettich
- 👤 Leland R Magargel
- 👤 Carl J Stengel Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:26
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/0006; H01Q21/0031; B; B64; B64G; B64G1/00; B64G1/22; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/288; H01Q3/00; H01Q3/26; H01Q3/267; H01Q3/30; H01Q3/34; H01Q3/36; H01Q3/38; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |