US2739673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial masts
Assignee: Individual
•
Filing: 1952-05-26
•
Granted: 1956-03-27
•
Expires: 1972-05-26
Abstract
No abstract record available.
Inventors
- 👤 Everett J Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:24
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US685385A
Cited
US1070167A
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US1073294A
Cited
GB233035A
Cited
US2324614A
Cited
US2331558A
Cited
US2369534A
Cited
US2611456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |