US814472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-escape
Assignee: —
•
Filing: —
•
Granted: 1906-03-06
•
Expires: 1923-03-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:29
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/02; A; A62; A62B; A62B1/00; A62B1/20; Y; Y10; Y10T; Y10T403/00; Y10T403/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1909-03-05 | 1909-09-04 | 1910-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-03-05 | 1913-09-04 | 1914-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-03-05 | 1917-09-04 | 1918-03-06 | $7700.00 | Window Closed / Lapsed |