US2890082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoisting attachment for tubular steel scaffolds
Assignee: Individual
•
Filing: 1953-06-22
•
Granted: 1959-06-09
•
Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Carter E Mcdaniel
- 👤 John T Karney
- 👤 Robert A Karney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:55
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/16; E; E04; E04G; E04G1/00; E04G1/18; E04G1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2379553A
Cited
US2420903A
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US2569653A
Cited
GB643885A
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US2512534A
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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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |