US2933335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable scaffold unit and clamps therefor
Assignee: EUGENE D FARLEY
•
Filing: 1957-09-24
•
Granted: 1960-04-19
•
Expires: 1977-09-24
Abstract
No abstract record available.
Inventors
- 👤 Watts Paul Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:46
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/28; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US540262A
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US583013A
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CA471724A
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GB190405309A
Cited
US1510503A
Cited
US1845921A
Cited
US2647803A
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US2825607A
Cited
US2803419A
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 |