US3328040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination stripper and blowout preventer
Assignee: Individual
•
Filing: 1964-03-23
•
Granted: 1967-06-27
•
Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Galen C Prichard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:53
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/08; F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/184; F16J15/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A TOOL OF THE CHARACTER DESCRIBED, A HOUSING RESILIENT MEANS DISPOSED WITHIN AND SUPPORTED BY THE HOUSING, CYLINDRICAL PISTON MEANS SLIDABLY DISPOSED WITHIN THE HOUSING AND IN ENGAGEMENT WITH ONE OF SAID RESILIENT MEANS, AND FOLLOWER MEANS COOPERATING WITH THE SLIDABLE MEANS FOR URGING THE SLIDABLE MEANS IN A DIRECTION TOWARD THE RESILIENT MEANS TO APPLY PRESSURE THEREAGAINST, SAID FOLLOWER MEANS INCLUDING A PAIR OF SPACED CYLINDRICAL SLEEVES FOR RECEIVING THE PISTON MEANS THEREBETWEEN, SAID RESILIENT MEANS BEING OF A CONFIGURATION WHEREBY THE INNER AND OUT-
Claim 2
Dependent Claim
87 words
IN A TOOL OF THE CHARACTER DESCRIBED, A HOUSING RESILIENT MEANS DISPOSED WITHIN AND SUPPORTED BY THE HOUSING, CYLINDRICAL PISTON MEANS SLIDABLY DISPOSED WITHIN THE HOUSING AND IN ENGAGEMENT WITH ONE OF SAID RESILIENT MEANS, AND FOLLOWER MEANS COOPERATING WITH THE SLIDABLE MEANS FOR URGING THE SLIDABLE MEANS IN A DIRECTION TOWARD THE RESILIENT MEANS TO APPLY PRESSURE THEREAGAINST, SAID FOLLOWER MEANS INCLUDING A PAIR OF SPACED CYLINDRICAL SLEEVES FOR RECEIVING THE PISTON MEANS THEREBETWEEN, SAID RESILIENT MEANS BEING OF A CONFIGURATION WHEREBY THE INNER AND OUT-
References Cited (Backward Citations)
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Cited
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US2243439A
Cited
US3013825A
Cited
US3132867A
Cited
US3168320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |