Patent US660872A successfully refreshed from Google Patents.
US660872A
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US
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Pressure regulating or reducing valve.
Assignee: Individual
•
Filing: 1899-08-21
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Granted: 1900-10-30
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Expires: 1919-08-21
Abstract
No abstract record available.
Inventors
- 👤 Percy B Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:06
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; Y; Y10; Y10S; Y10S236/00; Y10S236/01; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/7821
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) | 1903-10-30 | 1904-04-30 | 1904-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-10-30 | 1908-04-30 | 1908-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-10-30 | 1912-04-30 | 1912-10-30 | $7700.00 | Window Closed / Lapsed |