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Patent US3363042A successfully refreshed from Google Patents.
US3363042A
Expired / Lapsed
US
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Method and apparatus for extruding straight or curved pipes and similar articles outof cement mix and like materials
Assignee: Precision Concrete Extrusion Corp
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Filing: 1963-09-16
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Granted: 1968-01-09
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Getman
- 👤 Arthur J Getman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:24
CPC Classifications
B; B28; B28B; B28B3/00; B28B3/20; B28B21/00; B28B21/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE METHOD OF EXTRUDING END-CONNECTIVE ARTICLES OF A DESIRED LENGTH COMPRISING THE STEPS OF CONTINUOUSLY FEEDING AN EXTRUDABLE MATERIAL INTO A CHAMBER HAVING TOP, BOTTOM AND SIDE WALLS AND MOVABLE END FORMS FOR SHAPING THE FRONT AND REAR ENDS OF SUCH END-CONNECTIVE ARTICLES, INITIALLY SHAPING THE FRONT AND REAR ENDS OF SAID END-CONNECTIVE ARTICLES TO CONFORM TO SAID MOVABLE END FORMS, REMOVING THE FRONT END FORM FROM THE FRONT SHAPED END THUS FORMED, THEN CONTINUOUSLY EXTRUDING
Claim 2
Independent Claim
76 words
THE METHOD OF EXTRUDING END-CONNECTIVE ARTICLES OF A DESIRED LENGTH COMPRISING THE STEPS OF CONTINUOUSLY FEEDING AN EXTRUDABLE MATERIAL INTO A CHAMBER HAVING TOP, BOTTOM AND SIDE WALLS AND MOVABLE END FORMS FOR SHAPING THE FRONT AND REAR ENDS OF SUCH END-CONNECTIVE ARTICLES, INITIALLY SHAPING THE FRONT AND REAR ENDS OF SAID END-CONNECTIVE ARTICLES TO CONFORM TO SAID MOVABLE END FORMS, REMOVING THE FRONT END FORM FROM THE FRONT SHAPED END THUS FORMED, THEN CONTINUOUSLY EXTRUDING
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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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |