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US227234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-pressure regulator
Assignee: —
•
Filing: —
•
Granted: 1880-05-04
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Expires: 1897-05-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:20
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0777; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/7812; Y10T137/7814; Y10T137/8593; Y10T137/87917
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) | 1883-05-04 | 1883-11-03 | 1884-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1887-05-04 | 1887-11-03 | 1888-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1891-05-04 | 1891-11-03 | 1892-05-04 | $7700.00 | Window Closed / Lapsed |