US2671680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic structure
Assignee: Individual
•
Filing: 1951-01-19
•
Granted: 1954-03-09
•
Expires: 1971-01-19
Abstract
No abstract record available.
Inventors
- 👤 Myron B Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:00
CPC Classifications
A; A62; A62B; A62B5/00; E; E04; E04H; E04H12/00; E04H12/18; E04H12/182; F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/183; F16B7/00; F16B7/10; F16B7/14; H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311918A
Cited
US930406A
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US1047532A
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US1289867A
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US1820950A
Cited
US1801014A
Cited
US2354806A
Cited
US2376716A
Cited
US2522991A
Cited
US2488480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |