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US689850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-escape.
Assignee: Individual
•
Filing: 1901-03-30
•
Granted: 1901-12-31
•
Expires: 1921-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert Bustin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:40
CPC Classifications
A; A62; A62B; A62B1/00; A62B1/06
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) | 1904-12-30 | 1905-07-01 | 1905-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-12-30 | 1909-07-01 | 1909-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-12-30 | 1913-07-01 | 1913-12-31 | $7700.00 | Window Closed / Lapsed |