Patent US3186485A successfully refreshed from Google Patents.
US3186485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Setting tool devices
Assignee: Individual
•
Filing: 1962-04-04
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Granted: 1965-06-01
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Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Harrold D Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:38
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/06; E21B23/065
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
WELL APPARATUS, INCLUDING A WELL DEVICE ADAPTED TO BE OPERATED IN A WELL BORE; FLUID ACTUATED MEANS COMPRISING A HEAD ASSEMBLY INCLUDING IGNITER MEANS, A CYLINDER ASSEMBLY AND A PISTON ASSEMBLY WITHIN SAID CYLINDER ASSEMBLY, AND MEANS RELEASABLY SECURING SAID CYLINDER ASSEMBLY AGAINST MOVEMENT RELATIVE TO SAID PISTON ASSEMBLY, WITH SAID PISTON ASSEMBLY BEING SLIDABLE RELATIVE TO SAID CYLINDER ASSEMBLY WHEN SAID SECURING MEANS IS RELEASED; SAID PISTON ASSEMBLY INCLUDING LINKING MEANS CONNECTING SAID PISTON ASSEMBLY IN FIXED RELATION TO SAID HEAD ASSEMBLY AND SAID WELL DEVICE, AND A FIRST PISTON; SAID FIRST PISTON DEFINING WITH A PORTION OF SAID CYLINDER ASSEMBLY A DAMPING CHAMBER CONSTRICTED AT THE END THEREOF REMOTE FROM SAID PISTON AND EXPOSED AT SAID CONSTRICTED END TO WELL FLUID PRESSURE; AND MEANS INCLUDING A COMBUSTION CHAMBER WITHIN SAID CYLINDER ASSEMBLY FOR IMPARTING MOTION TO SAID PISTON IN THE DIRECTION TOWARD SAID CONSTRICTION UPON ACTUATION OF SAID FLUID ACTUATED MEANS.
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |