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US393748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam safety-valve
Assignee: —
•
Filing: —
•
Granted: 1888-12-04
•
Expires: 1905-12-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:00
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0433; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7837; Y10T137/785; Y10T137/7852
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) | 1891-12-04 | 1892-06-04 | 1892-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1895-12-04 | 1896-06-04 | 1896-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1899-12-04 | 1900-06-05 | 1900-12-05 | $7700.00 | Window Closed / Lapsed |