Patent US3929550A successfully refreshed from Google Patents.
Patent US2085688A successfully refreshed from Google Patents.
US2085688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Homestead Valve Manufacturing Co
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Filing: 1935-11-30
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Granted: 1937-06-29
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Expires: 1955-11-30
Abstract
No abstract record available.
Inventors
- 👤 Walter R Schuchman
- 👤 Frank W Ofeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:56
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635
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) | 1940-06-28 | 1940-12-28 | 1941-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-28 | 1944-12-28 | 1945-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-28 | 1948-12-28 | 1949-06-29 | $7700.00 | Window Closed / Lapsed |