US851555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle-valve.
Assignee: Individual
•
Filing: 1906-12-14
•
Granted: 1907-04-23
•
Expires: 1926-12-14
Abstract
No abstract record available.
Inventors
- 👤 Fred Elmer Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
F; F16; F16K; F16K39/00; F16K39/02; F16K39/024; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86976; Y10T137/87008
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) | 1910-04-22 | 1910-10-22 | 1911-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-04-22 | 1914-10-22 | 1915-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-04-22 | 1918-10-22 | 1919-04-23 | $7700.00 | Window Closed / Lapsed |