Patent US2726845A successfully refreshed from Google Patents.
US2726845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable elevator
Assignee: Individual
•
Filing: 1952-04-29
•
Granted: 1955-12-13
•
Expires: 1972-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis E Hyslop
- 👤 Hyslop Lois Boe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:18
CPC Classifications
B; B66; B66F; B66F15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US604833A
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US745545A
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US966974A
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US1244371A
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US1445219A
Cited
US2038047A
Cited
US2089336A
Cited
US2466760A
Cited
GB659280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |