US2905264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite link structures for collapsible ladders, conveyors, or the like
Assignee: Individual
•
Filing: 1957-02-20
•
Granted: 1959-09-22
•
Expires: 1977-02-20
Abstract
No abstract record available.
Inventors
- 👤 Dennis Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:02
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/52; E06C1/56; B; B65; B65G; B65G17/00; B65G17/06; B65G17/063; B65G2201/00; B65G2201/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US239921A
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US361616A
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US511447A
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US726682A
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US953429A
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US1266572A
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US1744239A
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US2498788A
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US2602345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |