Patent US495815A successfully refreshed from Google Patents.
US495815A
Expired / Lapsed
US
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Steam-pressure and water-level recorder for boilers
Assignee: —
•
Filing: —
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Granted: 1893-04-18
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Expires: 1910-04-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:30
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/084; G; G01; G01F; G01F23/00; G01F23/80; G01F23/802; G01F23/804
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) | 1896-04-17 | 1896-10-17 | 1897-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-04-18 | 1900-10-18 | 1901-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-04-18 | 1904-10-18 | 1905-04-19 | $7700.00 | Window Closed / Lapsed |