US2718941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported antenna mast
Assignee: Individual
•
Filing: 1952-08-22
•
Granted: 1955-09-27
•
Expires: 1972-08-22
Abstract
No abstract record available.
Inventors
- 👤 Homer W Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:15
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1207; H01Q1/1221
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1693298A
Cited
US1573286A
Cited
US2411900A
Cited
US2470396A
Cited
US2496646A
Cited
US2518875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |