Patent US2467800A successfully refreshed from Google Patents.
US2467800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steadying device for ladders
Assignee: Individual
•
Filing: 1945-02-26
•
Granted: 1949-04-19
•
Expires: 1965-02-26
Abstract
No abstract record available.
Inventors
- 👤 Isabelle J Backlin
- 👤 Carl A Backlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:33
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/18; E06C7/181; E06C7/182
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE284548C
Cited
US1459404A
Cited
FR578381A
Cited
FR720097A
Cited
US2208933A
Cited
US2167157A
Cited
US2325793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |