Patent US3091260A successfully refreshed from Google Patents.
US3091260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeline stopping tool
Assignee: ML Mfg Co
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Filing: 1960-05-31
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Granted: 1963-05-28
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 William T Milanovits
- 👤 Milanovits Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:28
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/16; F16K; F16K7/00; F16K7/20; F16L41/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
A PIPELINE STOPPING TOOL COMPRISING A THREADED NUT, A SCREW PART THREADED THERETHROUGH, SAID SCREW PART HAVING ON ONE SIDE OF THE NUT A PART ADAPTED FOR TURNING OF THE SCREW PART, A KEEPER HEAD UPON THE END OF THE SCREW PART ON THE OTHER SIDE OF THE NUT, A STOPPER CONSISTING OF A NONRESILIENT HEAD ADAPTED TO NOTATE AND TRANSVERSELY SWIVEL ON SAID KEEPER HEAD, SAID NONRESILIENT HEAD HAVING AN ENDWISE ANNULAR CONICAL SOCKET AND A CENTRAL THREADED BOSS EXTENDING THEREFROM, SAID STOPPER ALSO INCLUDING AN ATTACHABLE AND DETACHABLE RESILIENT PLUG HAVING AN ANNULAR RESILIENT CONICAL END FORMING AN OPENING AND ADAPTED TO BE RECEIVED IN SAID CONICAL END OF THE NONRESILIENT HEAD AND TO SURROUND SAID BOSS, SAID OPENING IN THE RESILIENT PLUG CON-
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |