US853693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-regulating valve.
Assignee: Individual
•
Filing: 1906-06-22
•
Granted: 1907-05-14
•
Expires: 1926-06-22
Abstract
No abstract record available.
Inventors
- 👤 Frank F Healey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734; Y10T137/87265; Y10T137/8733
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) | 1910-05-13 | 1910-11-12 | 1911-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-05-13 | 1914-11-12 | 1915-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-05-13 | 1918-11-12 | 1919-05-14 | $7700.00 | Window Closed / Lapsed |