Patent US3113364A successfully refreshed from Google Patents.
US3113364A
Expired / Lapsed
US
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Apparatus for producing cast-in-place pipe
Assignee: No-Joint Concrete Pipe Co
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Filing: 1961-06-05
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Granted: 1963-12-10
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence H Blixt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:16
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/028; F16L1/038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN APPARATUS FOR PRODUCING CAST-IN-PLACE CONDUITS AND HAVING A SKID SUPPORT ADAPTED TO BE MOVED LONGITUDINALLY ALONG THE BOTTOM OF A TRENCH, AN INNER FORM INCLUDING A PLURALITY OF SECTIONS RELEASABLY SECURED TOGETHER AND SUPPORTED FROM SAID SKID, AND HOPPER MEANS MOUNTED TO SAID SKID AND ARRANGED FOR DEPOSITING CEMENTITIOUS MATERIAL OVER AND AROUND SAID FORM, SAID HOPPER MEANS PROVIDING A BARRIER WALL ABOVE AND AROUND SAID FORM TO PREVENT MATERIAL FROM SPILLING FORWARD THEREOF, AND THE IMPROVEMENT COMPRISING: MEANS INCLUDING A PLATE MEMBER MOUNTED TO AND PROJECTING FORWARDLY OF SAID BARRIER FOR GUIDING A FORM SECTION ONTO SAID SKID, SAID PLATE MEMBER BEING INCLINED RADIALLY OUTWARD AND FOR-
Claim 2
Dependent Claim
109 words
IN APPARATUS FOR PRODUCING CAST-IN-PLACE CONDUITS AND HAVING A SKID SUPPORT ADAPTED TO BE MOVED LONGITUDINALLY ALONG THE BOTTOM OF A TRENCH, AN INNER FORM INCLUDING A PLURALITY OF SECTIONS RELEASABLY SECURED TOGETHER AND SUPPORTED FROM SAID SKID, AND HOPPER MEANS MOUNTED TO SAID SKID AND ARRANGED FOR DEPOSITING CEMENTITIOUS MATERIAL OVER AND AROUND SAID FORM, SAID HOPPER MEANS PROVIDING A BARRIER WALL ABOVE AND AROUND SAID FORM TO PREVENT MATERIAL FROM SPILLING FORWARD THEREOF, AND THE IMPROVEMENT COMPRISING: MEANS INCLUDING A PLATE MEMBER MOUNTED TO AND PROJECTING FORWARDLY OF SAID BARRIER FOR GUIDING A FORM SECTION ONTO SAID SKID, SAID PLATE MEMBER BEING INCLINED RADIALLY OUTWARD AND FOR-
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |