US1444759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder
Assignee: Individual
•
Filing: 1922-04-13
•
Granted: 1923-02-06
•
Expires: 1942-04-13
Abstract
No abstract record available.
Inventors
- 👤 Benjamin K Traylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:22
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/16; E06C1/00; E06C1/02; E06C1/38; E06C1/397; E06C9/00; E06C9/06; E06C9/08; E06C9/12
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) | 1926-02-05 | 1926-08-07 | 1927-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-02-05 | 1930-08-07 | 1931-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-02-05 | 1934-08-07 | 1935-02-06 | $7700.00 | Window Closed / Lapsed |