US1890248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure self-grinding valve
Assignee: OHIO INJECTOR CO
•
Filing: 1926-07-02
•
Granted: 1932-12-06
•
Expires: 1946-07-02
Abstract
No abstract record available.
Inventors
- 👤 Frank W Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:11
CPC Classifications
F; F16; F16K; F16K29/00; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4294; Y10T137/6198; Y10T137/6253; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1935-12-06 | 1936-06-06 | 1936-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-06 | 1940-06-06 | 1940-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-06 | 1944-06-06 | 1944-12-06 | $7700.00 | Window Closed / Lapsed |