US3208644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid metering apparatus
Assignee: Individual
•
Filing: 1963-11-29
•
Granted: 1965-09-28
•
Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Bergson Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:25
CPC Classifications
G; G01; G01F; G01F1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
FLUID METERING SYSTEM COMPRISING IN COMBINATION: (A) AN ELONGATED FLUID CHAMBER OF PREDETERMINED VOLUME, (B) A MOVEABLE RIGID BODY IN SAID CHAMBER, (C) FIRST AND SECOND VALVE MEANS RESPECTIVELY COUPLED TO FIRST AND SECOND OPPOSITE ENDS OF SAID CHAMBER, (D) FLUID INLET MEANS WHICH INCLUDES A FLUID INLET PORT AND FIRST FLUID CONVEYING MEANS COUPLED BETWEEN SAID INLET PORT AND SAID FIRST AND SECOND VALVE MEANS, (E) FLUID OUTLET MEANS WHICH INCLUDES A FLUID OUTLET PORT AND SECOND FLUID COVEYING MEANS COUPLED BETWEEN SAID OUTLET PORT AND SAID FIRST AND SECOND VALVE MEANS AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |