US2711918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic antenna
Assignee: Chisholm Ryder Co Inc
•
Filing: 1951-05-19
•
Granted: 1955-06-28
•
Expires: 1971-05-19
Abstract
No abstract record available.
Inventors
- 👤 George O Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:37
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US150517A
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US389005A
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US657205A
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US1031637A
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US1221723A
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US1351179A
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US1621811A
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US2173095A
Cited
US2495610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |