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 18:08
CPC Classifications
B; B66; B66F; B66F15/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE197253C
Cited
US604833A
Cited
US745545A
Cited
US966974A
Cited
US1244371A
Cited
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 |