Patent US2933275A successfully refreshed from Google Patents.
US2933275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible, telescoping legs for supports
Assignee: Individual
•
Filing: 1955-11-04
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Granted: 1960-04-19
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Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Wimmersperg Heinrich Ferdi Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:40
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/20; F16M11/24; F16M11/26; F16M11/32; F16M11/34; F16M2200/00; F16M2200/02; F16M2200/025; F16M2200/027; F16M2200/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE227920C
Cited
US178733A
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US389005A
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US398408A
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US882870A
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US1859223A
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US2437510A
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US2687866A
Cited
US2722970A
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US2790657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |