US2665952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder platform
Assignee: Individual
•
Filing: 1951-11-26
•
Granted: 1954-01-12
•
Expires: 1971-11-26
Abstract
No abstract record available.
Inventors
- 👤 Wayne R Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:11
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US960565A
Cited
US1906275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |