US770260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Approach to movable walks, stairways, &c.
Assignee: Individual
•
Filing: 1903-12-18
•
Granted: 1904-09-20
•
Expires: 1923-12-18
Abstract
No abstract record available.
Inventors
- 👤 George F Cahill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:55
CPC Classifications
B; B65; B65G; B65G37/00
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) | 1907-09-20 | 1908-03-21 | 1908-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-09-20 | 1912-03-21 | 1912-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-09-20 | 1916-03-21 | 1916-09-20 | $7700.00 | Window Closed / Lapsed |