US3626762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for filling a capillary tube with liquid
Assignee: Gilford Instrument Laboratories Inc
•
Filing: 1969-08-12
•
Granted: 1971-12-14
•
Expires: 1989-08-12
Abstract
Abstract AN EVACUATED LENGTH OF ACCURATELY SIZED BORE CAPILLARY TUBING WITH SEALED ENDS IS SCORED ADJACENT ONE END, SUPPORTED IN A BREAK-OFF MEMBER ON THE OPPOSITE SIDE OF SAID SCORE FROM SAID ONE END, IMMERSED IN A SAMPLE FLUID, AND THE LENGTH OF TUBING PUSHED AXIALLY AGAINST A WEDGE SURFACE OF THE BREAK-OFF MEMBER SO AS TO STRAIN THE SCORE LATERALLY THEREBY CLEANLY BREAKING OFF THE ONE END BELOW THE SURFACE OF THE SAMPLE FLUID. VACUUM DRAWS THE FLUID INTO THE LENGTH OF TUBING WHICH CAN THEN BE CUT INTO ACCURATE SHORT LENGTHS EACH CONTAINING A KNOWN VOLUME OF THE SAMPLE FLUID.
Inventors
- 👤 Saul R Gilford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:34
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14; B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; G01N2001/1472; G01N2001/149
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |