US3094360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split protector for well pipe
Assignee: Individual
•
Filing: 1961-01-27
•
Granted: 1963-06-18
•
Expires: 1981-01-27
Abstract
No abstract record available.
Inventors
- 👤 Charles H Collett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1042; E21B17/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A WELL PIPE PROTECTOR, COMPRISING GENERALLY ENDWISE SPLIT TUBULAR ELASTOMERIC BODY MEANS ADAPTED TO BE PLACED ABOUT THE PIPE, METALLIC GRIPPING MEANS CARRIED WITHIN SAID BODY MEANS TO EXTEND GENERALLY LENGTHWISE THEREOF FOR ENGAGEMENT AGAINST THE PIPE, SAID GRIPPING MEANS BEING LOCALLY EXPOSED AT OPPOSITE ENDS OF SAID BODY MEANS, SAID BODY MEANS BEING BONDED TO SAID GRIPPING MEANS AND SAID LOCAL EXPOSURE OF THE GRIPPING MEANS BEING EVERYWHERE WITHIN ENDWISE PROJECTION OF A CYLINDER DEFINED BY THE OUTER PERIPHERY OF SAID BODY MEANS, AND OTHER MEANS AT OPPOSITE ENDS OF SAID BODY MEANS FOR LOCALLY APPLYING FORCE ACTING TO HOLD SAID GRIPPING MEANS IN TIGHT ENGAGEMENT WITH THE PIPE.
Claim 2
Dependent Claim
110 words
A WELL PIPE PROTECTOR, COMPRISING GENERALLY ENDWISE SPLIT TUBULAR ELASTOMERIC BODY MEANS ADAPTED TO BE PLACED ABOUT THE PIPE, METALLIC GRIPPING MEANS CARRIED WITHIN SAID BODY MEANS TO EXTEND GENERALLY LENGTHWISE THEREOF FOR ENGAGEMENT AGAINST THE PIPE, SAID GRIPPING MEANS BEING LOCALLY EXPOSED AT OPPOSITE ENDS OF SAID BODY MEANS, SAID BODY MEANS BEING BONDED TO SAID GRIPPING MEANS AND SAID LOCAL EXPOSURE OF THE GRIPPING MEANS BEING EVERYWHERE WITHIN ENDWISE PROJECTION OF A CYLINDER DEFINED BY THE OUTER PERIPHERY OF SAID BODY MEANS, AND OTHER MEANS AT OPPOSITE ENDS OF SAID BODY MEANS FOR LOCALLY APPLYING FORCE ACTING TO HOLD SAID GRIPPING MEANS IN TIGHT ENGAGEMENT WITH THE PIPE.
References Cited (Backward Citations)
US1173998A
Cited
US1552888A
Cited
US2251253A
Cited
US2368415A
Cited
US2860013A
Cited
US2959453A
Cited
US2877062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |