US2750236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating platform structure
Assignee: SCAFFOLD EQUIPMENT Co
•
Filing: 1952-05-07
•
Granted: 1956-06-12
•
Expires: 1972-05-07
Abstract
No abstract record available.
Inventors
- 👤 Henry B Middendorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:24
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/24; B; B64; B64F; B64F5/00; B64F5/60; B66; B66F; B66F11/00; B66F11/04; E04G1/18; E04G1/22; E04G2001/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US619439A
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GB190022375A
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US1116091A
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US1595450A
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US1639962A
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GB294434A
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US1981680A
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US2062473A
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US2183679A
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US2204671A
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US2531001A
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US2610875A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |