Patent US2935269A successfully refreshed from Google Patents.
US2935269A
Expired / Lapsed
US
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Extensible telescopic antenna with drum drive and exchangeable telescope
Assignee: FIRM OF RICHARD HIRSCHMANN RAD
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Filing: 1957-07-19
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Granted: 1960-05-03
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Expires: 1977-07-19
Abstract
No abstract record available.
Inventors
- 👤 Burkhardt Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:43
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1659876A
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US1928581A
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US2053018A
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US2343684A
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US2634924A
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US2623175A
Cited
US2677973A
Cited
US2683584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |