Patent US2393902A successfully refreshed from Google Patents.
US705369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for steam-boilers.
Assignee: Individual
•
Filing: 1901-11-30
•
Granted: 1902-07-22
•
Expires: 1921-11-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Manley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:49
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/42; F17; F17C; F17C2205/00; F17C2205/01; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2205/0142
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) | 1905-07-21 | 1906-01-20 | 1906-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-07-21 | 1910-01-20 | 1910-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-07-21 | 1914-01-20 | 1914-07-22 | $7700.00 | Window Closed / Lapsed |