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Patent US1203296A successfully refreshed from Google Patents.
US1203296A
Expired / Lapsed
US
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Valve-stem for flush-tank valves.
Assignee: Wolverine Brass Works
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Filing: 1915-06-01
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Granted: 1916-10-31
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Expires: 1935-06-01
Abstract
No abstract record available.
Inventors
- 👤 Oliver P Yost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:34
CPC Classifications
F; F16; F16K; F16K47/00
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) | 1919-10-31 | 1920-05-01 | 1920-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-10-31 | 1924-05-01 | 1924-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-10-31 | 1928-05-01 | 1928-10-31 | $7700.00 | Window Closed / Lapsed |