US3112882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump for liquids
Assignee: Beckman Coulter Inc
•
Filing: 1960-03-21
•
Granted: 1963-12-03
•
Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul Thomas Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/71; G01N21/714; F; F23; F23K; F23K5/00; F23K5/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
IN A PUMP FOR LIQUIDS, THE COMBINATION OF: A SEALED CONTAINER FOR THE LIQUID TO BE PUMPED; AN OUTLET CAPILLARY PROJECTING INTO SAID CONTAINER; AN INLET CAPILLARY PROJECTING INTO SAID CONTAINER; AND MEANS FOR SUPPLYING GAS TO SAID INLET CAPILLARY AT A CONSTANT RATE OF VOLUME FLOW FOR MOVING LIQUID OUT OF SAID CONTAINER THROUGH SAID OUTLET CAPILLARY, SAID MEANS COMPRISING A GAS LEAK HAVING A
References Cited (Backward Citations)
US435458A
Cited
US1294835A
Cited
US1646081A
Cited
US1981077A
Cited
US2450140A
Cited
US2596414A
Cited
US2714833A
Cited
US2683425A
Cited
US2780491A
Cited
US2813750A
Cited
US2929563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |