US2569597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire escape device
Assignee: Individual
•
Filing: 1947-09-10
•
Granted: 1951-10-02
•
Expires: 1967-09-10
Abstract
No abstract record available.
Inventors
- 👤 Sr Joseph W Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:28
CPC Classifications
A; A62; A62B; A62B1/00; A62B1/06; A62B1/08; A62B1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US269180A
Cited
US499562A
Cited
US627347A
Cited
US992902A
Cited
US1853355A
Cited
US2205026A
Cited
US2515325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |