US3277966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide with sacrificial inserts
Assignee: Individual
•
Filing: 1963-11-01
•
Granted: 1966-10-11
•
Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 Warren F Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:27
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1035; C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/18; E21B17/1042; E21B17/105; E21B41/00; E21B41/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN OIL WELL EQUIPMENT, A GUIDE TO BE ATTACHED TO A SUCKER ROD, COMPRISING: (A) A SUBSTANTIALLY CYLINDRICAL DEFORMABLE BODY HAVING A ROD-RECEIVING LONGITUDINAL FIRST BORE THERETHROUGH AND HAVING A LONGITUDINAL SLOT EXTENDING THROUGH THE BODY WHEN ATTACHED TO A ROD AND COMMUNICATING WITH THE BORE, THE SLOT BEING WIDE ENOUGH TO ADMIT THE ROD INTO THE BORE WHEN THE BODY IS FLEXED OPEN AT THE SLOT AND NORMALLY LEAVING EXPOSED A PORTION OF THE ROD WITHIN THE SLOT; (B) THE BODY HAVING A SHOULDER FACING GENERALLY IN THE DIRECTION OF THE SLOT AND HAVING A SECOND BORE RADIALLY OFFSET FROM THE CENTER OF THE BODY AND EXTENDING THROUGH SAID SHOULDER TOWARD THE SLOT AND SUBSTANTIALLY PARALLEL WITH THE FIRST BORE; AND
Claim 2
Dependent Claim
122 words
IN OIL WELL EQUIPMENT, A GUIDE TO BE ATTACHED TO A SUCKER ROD, COMPRISING: (A) A SUBSTANTIALLY CYLINDRICAL DEFORMABLE BODY HAVING A ROD-RECEIVING LONGITUDINAL FIRST BORE THERETHROUGH AND HAVING A LONGITUDINAL SLOT EXTENDING THROUGH THE BODY WHEN ATTACHED TO A ROD AND COMMUNICATING WITH THE BORE, THE SLOT BEING WIDE ENOUGH TO ADMIT THE ROD INTO THE BORE WHEN THE BODY IS FLEXED OPEN AT THE SLOT AND NORMALLY LEAVING EXPOSED A PORTION OF THE ROD WITHIN THE SLOT; (B) THE BODY HAVING A SHOULDER FACING GENERALLY IN THE DIRECTION OF THE SLOT AND HAVING A SECOND BORE RADIALLY OFFSET FROM THE CENTER OF THE BODY AND EXTENDING THROUGH SAID SHOULDER TOWARD THE SLOT AND SUBSTANTIALLY PARALLEL WITH THE FIRST BORE; AND
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |