Patent US642039A successfully refreshed from Google Patents.
US642039A
Expired / Lapsed
US
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Throttle-valve.
Assignee: Individual
•
Filing: 1899-07-24
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Granted: 1900-01-23
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Expires: 1919-07-24
Abstract
No abstract record available.
Inventors
- 👤 William L Garrels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:50
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767; Y10T137/86775
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) | 1903-01-23 | 1903-07-25 | 1904-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-01-23 | 1907-07-25 | 1908-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-01-23 | 1911-07-25 | 1912-01-24 | $7700.00 | Window Closed / Lapsed |