US351045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gas-fuel regulator
Assignee: —
•
Filing: —
•
Granted: 1886-10-19
•
Expires: 1903-10-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/107; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7805; Y10T137/7807
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) | 1889-10-18 | 1890-04-19 | 1890-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1893-10-18 | 1894-04-19 | 1894-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1897-10-18 | 1898-04-19 | 1898-10-19 | $7700.00 | Window Closed / Lapsed |