Patent US3170720A successfully refreshed from Google Patents.
US3170720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible conduit for piping and the like
Assignee: Individual
•
Filing: 1962-01-30
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Granted: 1965-02-23
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Expires: 1982-01-30
Abstract
No abstract record available.
Inventors
- 👤 Browning Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:50
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A FLEXIBLE CONDUIT COMPRISING, A FIRST END MEANS HAVING ONE OF ITS ENDS PROVIDED WITH MEANS ENABLING IT TO BE CONNECTED TO ANOTHER PIPE, A SECOND END MEANS PROVIDED WITH MEANS ENABLING IT TO BE CONNECTED TO ANOTHER PIPE, A PLURALITY OF RESILIENT RING COUPLING MEANS, EACH OF SAID RESILIENT RING COUPLING MEANS CONTAINING A PAIR OF ANNULAR CAVITIES, EACH OF SAID CAVITIES BEING LOCATED AT A RESPECTIVE END OF SAID RESILIENT RING COUPLING MEANS, A PLURALITY OF NON-RESILIENT RING ELEMENTS, SAID PLURALITY OF NON-RESILIENT RING ELEMENTS BEING ALTERNATELY COUPLED WITH SAID RESILIENT RING COUPLING MEANS TO FORM A FLEXIBLE FLUIDTIGHT CONDUIT WITH THE END MEMBERS BEING RESILIENT COUPLING MEANS, SAID NON-RESILIENT RING ELEMENTS HAVING
Claim 2
Dependent Claim
115 words
A FLEXIBLE CONDUIT COMPRISING, A FIRST END MEANS HAVING ONE OF ITS ENDS PROVIDED WITH MEANS ENABLING IT TO BE CONNECTED TO ANOTHER PIPE, A SECOND END MEANS PROVIDED WITH MEANS ENABLING IT TO BE CONNECTED TO ANOTHER PIPE, A PLURALITY OF RESILIENT RING COUPLING MEANS, EACH OF SAID RESILIENT RING COUPLING MEANS CONTAINING A PAIR OF ANNULAR CAVITIES, EACH OF SAID CAVITIES BEING LOCATED AT A RESPECTIVE END OF SAID RESILIENT RING COUPLING MEANS, A PLURALITY OF NON-RESILIENT RING ELEMENTS, SAID PLURALITY OF NON-RESILIENT RING ELEMENTS BEING ALTERNATELY COUPLED WITH SAID RESILIENT RING COUPLING MEANS TO FORM A FLEXIBLE FLUIDTIGHT CONDUIT WITH THE END MEMBERS BEING RESILIENT COUPLING MEANS, SAID NON-RESILIENT RING ELEMENTS HAVING
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |