Patent US794808A successfully refreshed from Google Patents.
US794808A
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US
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Valve-seat.
Assignee: LUNKEN-HEIMER Co
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Filing: 1905-01-11
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Granted: 1905-07-18
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Expires: 1925-01-11
Abstract
No abstract record available.
Inventors
- 👤 Edmund H Lunken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6154; Y10T137/6157
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) | 1908-07-17 | 1909-01-16 | 1909-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-07-17 | 1913-01-16 | 1913-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-07-17 | 1917-01-16 | 1917-07-18 | $7700.00 | Window Closed / Lapsed |