US854152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder.
Assignee: Individual
•
Filing: 1906-03-17
•
Granted: 1907-05-21
•
Expires: 1926-03-17
Abstract
No abstract record available.
Inventors
- 👤 Cornelius De Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:57
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1910-05-20 | 1910-11-19 | 1911-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-05-20 | 1914-11-19 | 1915-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-05-20 | 1918-11-19 | 1919-05-21 | $7700.00 | Window Closed / Lapsed |