Patent US2468186A successfully refreshed from Google Patents.
US2468186A
Expired / Lapsed
US
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Scaffold
Assignee: Automatic Devices Inc
•
Filing: 1946-04-25
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Granted: 1949-04-26
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Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Perret Arthur W Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:43
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1920130A
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US1828487A
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US2126720A
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US2305563A
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US2303428A
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US2311988A
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US2308831A
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US2361614A
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US2363382A
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US2406078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |