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Patent US718657A successfully refreshed from Google Patents.
US718657A
Expired / Lapsed
US
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Air-inlet valve.
Assignee: JACOB MANNESCHMIDT JR
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Filing: 1902-08-04
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Granted: 1903-01-20
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Expires: 1922-08-04
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Renton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:14
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/04; F16K27/044; F16K27/045; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/787; Y10T137/7871; Y10T137/7898; Y10T137/8158; Y10T137/8359
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) | 1906-01-19 | 1906-07-21 | 1907-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-01-19 | 1910-07-21 | 1911-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-01-19 | 1914-07-21 | 1915-01-20 | $7700.00 | Window Closed / Lapsed |