Patent FR661949A successfully refreshed from Google Patents.
US3334643A
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Constant flow system
Assignee: Technicon Corp
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Filing: 1965-02-18
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Granted: 1967-08-08
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Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Morris H Shamos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:04
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0186; B; B01; B01L; B01L99/00; F; F04; F04B; F04B13/00; F15; F15B; F15B1/00; F15B1/02; F15B1/027; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/8593; Y10T137/86292; Y10T137/86324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
CONSTANT RATE OF FLOW, LIQUID-FLOW APPARATUS, COMPRISING A CLOSED CONTAINER FOR A LIQUID, SAID CONTAINER HAVING AN OUTLET FOR SAID LIQUID, MEANS FOR ADMITTIG A GASEOUS FLUID INTO SAID CONTAINER ABOVE THE LEVEL OF THE LIQUID IN THE CONTAINER, AND MEANS RESPONSIVE TO THE FLOW OF LIQUID FROM SAID CONTAINER FOR CONTROLLING INVERSELY THE FLOW OF SAID GASEOUS FLUID INTO THE CONTAINER THROUGH SAID ADMITTING MEANS.
Claim 2
Dependent Claim
66 words
CONSTANT RATE OF FLOW, LIQUID-FLOW APPARATUS, COMPRISING A CLOSED CONTAINER FOR A LIQUID, SAID CONTAINER HAVING AN OUTLET FOR SAID LIQUID, MEANS FOR ADMITTIG A GASEOUS FLUID INTO SAID CONTAINER ABOVE THE LEVEL OF THE LIQUID IN THE CONTAINER, AND MEANS RESPONSIVE TO THE FLOW OF LIQUID FROM SAID CONTAINER FOR CONTROLLING INVERSELY THE FLOW OF SAID GASEOUS FLUID INTO THE CONTAINER THROUGH SAID ADMITTING MEANS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |