Patent US363884A successfully refreshed from Google Patents.
US363884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for radiators
Assignee: —
•
Filing: —
•
Granted: 1887-05-31
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Expires: 1904-05-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:58
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; F16L; F16L37/00; F16L37/56; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87153; Y10T137/87161
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) | 1890-05-30 | 1890-11-29 | 1891-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-05-30 | 1894-11-29 | 1895-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-05-30 | 1898-11-29 | 1899-05-31 | $7700.00 | Window Closed / Lapsed |