US1152687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Step-ladder.
Assignee: Individual
•
Filing: 1914-12-23
•
Granted: 1915-09-07
•
Expires: 1934-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert Acton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:58
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/46
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) | 1918-09-06 | 1919-03-08 | 1919-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-09-06 | 1923-03-08 | 1923-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-09-06 | 1927-03-08 | 1927-09-07 | $7700.00 | Window Closed / Lapsed |