Patent US1783735A successfully refreshed from Google Patents.
Patent US717437A successfully refreshed from Google Patents.
US717437A
Expired / Lapsed
US
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Needle-valve.
Assignee: PITTSBURG GAS ENGINE Co
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Filing: 1902-06-26
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Granted: 1902-12-30
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Expires: 1922-06-26
Abstract
No abstract record available.
Inventors
- 👤 Harry M Mccall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:02
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; Y; Y10; Y10S; Y10S137/00; Y10S137/903; Y10S251/00; Y10S251/903; Y10T; Y10T137/00; Y10T137/794; Y10T137/8013; Y10T137/8593; Y10T137/86187
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) | 1905-12-29 | 1906-06-30 | 1906-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-12-29 | 1910-06-30 | 1910-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-12-29 | 1914-06-30 | 1914-12-30 | $7700.00 | Window Closed / Lapsed |