Patent US2678243A successfully refreshed from Google Patents.
US2678243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable scaffolding
Assignee: Individual
•
Filing: 1952-05-20
•
Granted: 1954-05-11
•
Expires: 1972-05-20
Abstract
No abstract record available.
Inventors
- 👤 Rene A Masse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:09
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/18; E06C7/185; E06C7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1305922A
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US1159368A
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US1760803A
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US2059739A
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US2104982A
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US2167982A
Cited
US2219642A
Cited
US2532590A
Cited
US2560122A
Cited
US2467424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |