Patent US3848533A successfully refreshed from Google Patents.
Patent US3335801A successfully refreshed from Google Patents.
US3335801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cementing vibrator
Assignee: Individual
•
Filing: 1964-12-18
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Granted: 1967-08-15
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Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Wilsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:00
CPC Classifications
E; E21; E21B; E21B28/00; E21B33/00; E21B33/10; E21B33/13; E21B33/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A WELL PIPE VIBRATING APPARATUS, COMPRISING: A SUBSTANTIALLY CYLINDRICAL ECCENTRIC BODY CLOSELY RECEIVED WITHIN A WELL PIPE, SAID BODY HAVING A FLUID COURSE THERETHROUGH; A FRAME COMPRISING A PLURALITY OF SUPPORTING LEGS; A BEARING INTERCONNECTING SAID LEGS AND SUPPORTING SAID BODY; AND A FLUID GUIDE PIVOTALLY CONNECTED COAXIALLY WITH THE END OF SAID BODY OPPOSITE SAID FRAME AND SEALING WITH
Claim 2
Dependent Claim
60 words
A WELL PIPE VIBRATING APPARATUS, COMPRISING: A SUBSTANTIALLY CYLINDRICAL ECCENTRIC BODY CLOSELY RECEIVED WITHIN A WELL PIPE, SAID BODY HAVING A FLUID COURSE THERETHROUGH; A FRAME COMPRISING A PLURALITY OF SUPPORTING LEGS; A BEARING INTERCONNECTING SAID LEGS AND SUPPORTING SAID BODY; AND A FLUID GUIDE PIVOTALLY CONNECTED COAXIALLY WITH THE END OF SAID BODY OPPOSITE SAID FRAME AND SEALING WITH
References Cited (Backward Citations)
US2148722A
Cited
US2072982A
Cited
US2187088A
Cited
US2360803A
Cited
US2785757A
Cited
US3049185A
Cited
US3076513A
Cited
US3163240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |