US2954737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable pump and liquid proportioning device
Assignee: Liqua-Mix Inc
•
Filing: 1954-04-19
•
Granted: 1960-10-04
•
Expires: 1974-04-19
Abstract
No abstract record available.
Inventors
- 👤 Charles D Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/021; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US536430A
Cited
US552386A
Cited
US1072718A
Cited
GB498078A
Cited
US2203832A
Cited
US2369365A
Cited
US2627813A
Cited
US2552762A
Cited
US2666392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |