US2637516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna tower supporting base
Assignee: Individual
•
Filing: 1950-10-16
•
Granted: 1953-05-05
•
Expires: 1970-10-16
Abstract
No abstract record available.
Inventors
- 👤 Carl E Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US224799A
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US1324934A
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US824479A
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US887663A
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US1186992A
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US1517251A
Cited
GB569504A
Cited
US2439062A
Cited
US2500048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |