US3107141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of apparatus for molding articles each having a central opening therethrough
Assignee: Woodcraft Corp
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Filing: 1961-08-07
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Granted: 1963-10-15
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 John M Crafton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:48
CPC Classifications
B; B27; B27N; B27N5/00; B29; B29C; B29C43/00; Y; Y10; Y10S; Y10S425/00; Y10S425/054; Y10S425/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE PROCESS OF MOLDING A CENTRALLY APERTURED PRODUCT FROM A MIXTURE OF DISCRETE PARTICLES AND A BINDER COMPRISING, MOVING A PLURALITY OF ALIGNED, CENTRALLY APERTURED MOLDS FILLED WITH A PREDETERMINED VOLUME OF SAID MIXTURES STEP-BY-STEP ALONG A ROD PASSING THROUGH THE APERTURES OF THE MOLDS AND POSITIONED WITHIN A TUBE CENTRALLY OF THE LONGITUDINAL AXIS THEREOF, APPLYING A COMPRESSIVE FORCE TO THE MIXTURE IN THE MOLDS AS THE MOLDS MOVE BETWEEN A RECEIVING END OF THE TUBE AND A DISCHARGE END
Claim 2
Dependent Claim
81 words
THE PROCESS OF MOLDING A CENTRALLY APERTURED PRODUCT FROM A MIXTURE OF DISCRETE PARTICLES AND A BINDER COMPRISING, MOVING A PLURALITY OF ALIGNED, CENTRALLY APERTURED MOLDS FILLED WITH A PREDETERMINED VOLUME OF SAID MIXTURES STEP-BY-STEP ALONG A ROD PASSING THROUGH THE APERTURES OF THE MOLDS AND POSITIONED WITHIN A TUBE CENTRALLY OF THE LONGITUDINAL AXIS THEREOF, APPLYING A COMPRESSIVE FORCE TO THE MIXTURE IN THE MOLDS AS THE MOLDS MOVE BETWEEN A RECEIVING END OF THE TUBE AND A DISCHARGE END
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |