US3289766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrievable high temperature well packer apparatus
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1963-08-15
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Granted: 1966-12-06
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Expires: 1983-08-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Bigelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:07
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1291; E21B33/1292; E21B33/1208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A WELL PACKER ADAPTED TO BE SET IN A CONDUIT DISPOSED IN A WELL BORE: A BODY; SLIP MEANS ON SAID BODY; EXPANDER MEANS ENGAGEABLE WITH SAID SLIP MEANS TO EXPAND SAID SLIP MEANS AGAINST THE CONDUIT; PACKING MEANS ON SAID BODY; ABUTMENT MEANS ON SAID BODY ENGAGING SAID PACKING MEANS; MEANS FOR SHIFTING SAID EXPANDER MEAN AND SLIP MEANS WITH RESPECT TO EACH OTHER TO EXPAND SAID SLIP MEANS AGAINST THE CONDUIT; AND MEANS INDEPENDENT OF SAID SHIFTING MEANS INTERCONNECTING SAID BODY AND ABUTMENT MEANS WHEREBY ROTATION OF SAID AVYTNEBT NEABS SGUFTS SAID ABUTMENT MEANS ALONG SAID BODY TO EXPAND SAID PACKING MEANS AGAINST THE CONDUIT.
Claim 2
Dependent Claim
108 words
IN A WELL PACKER ADAPTED TO BE SET IN A CONDUIT DISPOSED IN A WELL BORE: A BODY; SLIP MEANS ON SAID BODY; EXPANDER MEANS ENGAGEABLE WITH SAID SLIP MEANS TO EXPAND SAID SLIP MEANS AGAINST THE CONDUIT; PACKING MEANS ON SAID BODY; ABUTMENT MEANS ON SAID BODY ENGAGING SAID PACKING MEANS; MEANS FOR SHIFTING SAID EXPANDER MEAN AND SLIP MEANS WITH RESPECT TO EACH OTHER TO EXPAND SAID SLIP MEANS AGAINST THE CONDUIT; AND MEANS INDEPENDENT OF SAID SHIFTING MEANS INTERCONNECTING SAID BODY AND ABUTMENT MEANS WHEREBY ROTATION OF SAID AVYTNEBT NEABS SGUFTS SAID ABUTMENT MEANS ALONG SAID BODY TO EXPAND SAID PACKING MEANS AGAINST THE CONDUIT.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |