Patent US3344860A successfully refreshed from Google Patents.
US3344860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sidewall sealing pad for borehole apparatus
Assignee: Schlumberger Well Surveying Corp
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Filing: 1965-05-17
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Granted: 1967-10-03
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Expires: 1985-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ulrich E Voetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:30
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A SEALING PAD ADAPTED FOR SEALING AGAINST THE WALL OF A WELL BORE TRAVERSING EARTH FORMATIONS COMPRISING: A TUBULAR MEMBER; REINFORCING MEANS EXTENDING LATERALLY OF SAID TUBULAR MEMBER AND MOVABLE RELATIVE THERETO; RESILIENT SEALING MEANS AROUND SAID TUBULAR MEMBER AND REINFORCING MEANS, SAID RESILIENT SEALING MEANS HAVING A FOR-
Claim 2
Dependent Claim
49 words
A SEALING PAD ADAPTED FOR SEALING AGAINST THE WALL OF A WELL BORE TRAVERSING EARTH FORMATIONS COMPRISING: A TUBULAR MEMBER; REINFORCING MEANS EXTENDING LATERALLY OF SAID TUBULAR MEMBER AND MOVABLE RELATIVE THERETO; RESILIENT SEALING MEANS AROUND SAID TUBULAR MEMBER AND REINFORCING MEANS, SAID RESILIENT SEALING MEANS HAVING A FOR-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |