US166567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in pressure-regulators for water-pipes
Assignee: —
•
Filing: —
•
Granted: 1875-08-10
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Expires: 1892-08-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:20
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7794; Y10T137/7809; Y10T137/781
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) | 1878-08-09 | 1879-02-08 | 1879-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1882-08-09 | 1883-02-08 | 1883-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1886-08-09 | 1887-02-08 | 1887-08-10 | $7700.00 | Window Closed / Lapsed |