US3104712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation fluid testing and sampling apparatus
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:28
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
FLUID SAMPLING APPARATUS COMPRISING: AN ELONGATED SUPPORT MEMBER HAVING A LOW-PRESSURE, SAMPLERECEIVING CHAMBER; A WALL-ENGAGING MEMBER MOUNTED ON SAID SUPPORT MEMBER; MEANS COUPLED TO SAID MEMBERS FOR MOVING SAID MEMBERS RELATIVE TO ONE ANOTHER; A PAIR OF LIKE, ANNULAR, ELASTIC SEALING RINGS RIGIDLY MOUNTED ON SAID SUPPORT MEMBER IN LONGITUDINALLY-SPACED AND PROTRUDING RELATION THERETO, SAID RINGS BEING SYMMETRICALLY POSITIONED ABOVE AND BELOW THE WALL-CONTACTING FACE OF SAID WALL-ENGAGING MEMBER ON A DIAMETRICALLY-OPPOSITE SIDE OF SAID SUPPORT MEMBER FROM SAID WALL-ENGAGING MEMBER, AND MEANS FOR PLACING THE CENTRAL PORTION OF SAID RINGS IN FLUID COMMUNICATION WITH SAID SAMPLERECEIVING CHAMBER.
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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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |