Patent US731352A successfully refreshed from Google Patents.
US731352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable fire-escape.
Assignee: Individual
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Filing: 1902-12-18
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Granted: 1903-06-16
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Expires: 1922-12-18
Abstract
No abstract record available.
Inventors
- 👤 Webster B Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:20
CPC Classifications
F; F16; F16B; F16B45/00; F16B45/02; F16B45/035; E; E06; E06C; E06C9/00; E06C9/06; E06C9/14; F16B45/036
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) | 1906-06-15 | 1906-12-15 | 1907-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-06-15 | 1910-12-15 | 1911-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-06-15 | 1914-12-15 | 1915-06-16 | $7700.00 | Window Closed / Lapsed |