Patent US717688A successfully refreshed from Google Patents.
US717688A
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US
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Gas and air regulating valve.
Assignee: Individual
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Filing: 1902-05-19
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Granted: 1903-01-06
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Expires: 1922-05-19
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Kerns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:50
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/24; E; E03; E03C; E03C1/00; E03C1/02; E03C1/05; E03C1/055; E03C1/057; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
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) | 1906-01-05 | 1906-07-07 | 1907-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-01-05 | 1910-07-07 | 1911-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-01-05 | 1914-07-07 | 1915-01-06 | $7700.00 | Window Closed / Lapsed |