Patent US442863A successfully refreshed from Google Patents.
US442863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner
Assignee: —
•
Filing: —
•
Granted: 1890-12-16
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Expires: 1907-12-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:17
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/05; E03C1/055; E03C1/057; F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/24; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
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) | 1893-12-15 | 1894-06-16 | 1894-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-12-15 | 1898-06-16 | 1898-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-12-16 | 1902-06-17 | 1902-12-17 | $7700.00 | Window Closed / Lapsed |