US2662716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold erecting ladder jack
Assignee: Individual
•
Filing: 1949-10-10
•
Granted: 1953-12-15
•
Expires: 1969-10-10
Abstract
No abstract record available.
Inventors
- 👤 James P Lowrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:32
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US328999A
Cited
US680428A
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US791531A
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US1187487A
Cited
US1468412A
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US1557278A
Cited
US1960863A
Cited
US2446093A
Cited
US2488984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |