Patent US3150424A successfully refreshed from Google Patents.
US3150424A
Expired / Lapsed
US
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Process and apparatus for lining pipe molds
Assignee: Woodward Iron Co
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Filing: 1961-10-06
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Granted: 1964-09-29
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Blanc Leo J Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:25
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/101; B22D13/102; B22C; B22C23/00; B22C23/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN APPARATUS FOR BLOW LINING VENTED FLASKS AND THE LIKE WITH SAID, A PATTERN, MEANS SUPPORTING THE PATTERN IN CANTILEVER FASHION FOR ENTRY INTO THE FLASK AND EFFECTIVE TO HOLD THE END OF THE PATTERN ADJACENT SAID MEANS IN CENTERED RELATION WITH THE ADJACENT END OF THE FLASK, SAND BLOWING MEANS ADJACENT THE OPPOSITE END OF THE FLASK, FLASK CENTERING MEANS LOCATED AT EACH END OF THE FLASK EACH OF WHICH EMBODIES A CENTERING RING RESILIENTLY BIASED TOWARD THE RESPECTIVE ENDS OF THE FLASK, AND MEANS LOCATED ADJACENT THE END OF THE FLASK NEAREST THE SAND BLOWING MEANS EFFECTIVE TO HOLD THE END OF THE PATTERN ADJACENT THERETO CENTERED IN SAID END OF THE FLASK.
References Cited (Backward Citations)
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US2796645A
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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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |