Patent US3185850A successfully refreshed from Google Patents.
US1931048A
Expired / Lapsed
US
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Valve
Assignee: Individual
•
Filing: 1932-05-28
•
Granted: 1933-10-17
•
Expires: 1952-05-28
Abstract
No abstract record available.
Inventors
- 👤 John A Wiener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0442; F16K5/0407; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275
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) | 1936-10-16 | 1937-04-17 | 1937-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-16 | 1941-04-17 | 1941-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-16 | 1945-04-17 | 1945-10-17 | $7700.00 | Window Closed / Lapsed |