Patent US3205128A successfully refreshed from Google Patents.
US3205128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shell making
Assignee: Beloit Iron Works Inc
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Filing: 1962-01-22
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Granted: 1965-09-07
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Justus
- 👤 Donald A Brafford
- 👤 Arnold J Roerig
- 👤 Jr Lloyd Hornbostel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:03
CPC Classifications
D; D21; D21J; D21J7/00; D21J5/00; Y; Y10; Y10S; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A MECHANISM FOR FORMING A HOLLOW SHELL, THE COMBINATIN COMPRISING A POROUS SHAPED MOLD HAVING A FORMING SURFACE ON WHICH PARTICLES ARE DEPOSITED, SUPPLY MEANS FOR FORCING A FLUID STOCK HAVING PARTICLES IN SUSPENSION THROUGH THE MOLD TO DEPOSIT PARTICLES ON THE MOLD SURFACE, AND A SHAPED SCREEN CONFORMING TO THE SHAPE OF SAID FORMING SURFACE POSITONED IMMEDIATELY ADJACENT THE FORMING SURFACE SO THAT THE STOCK FLOWS THROUGH THE SCREEN IMMEDIATELY BEFORE REACHING THE FORMING SURFACE.
Claim 2
Dependent Claim
77 words
IN A MECHANISM FOR FORMING A HOLLOW SHELL, THE COMBINATIN COMPRISING A POROUS SHAPED MOLD HAVING A FORMING SURFACE ON WHICH PARTICLES ARE DEPOSITED, SUPPLY MEANS FOR FORCING A FLUID STOCK HAVING PARTICLES IN SUSPENSION THROUGH THE MOLD TO DEPOSIT PARTICLES ON THE MOLD SURFACE, AND A SHAPED SCREEN CONFORMING TO THE SHAPE OF SAID FORMING SURFACE POSITONED IMMEDIATELY ADJACENT THE FORMING SURFACE SO THAT THE STOCK FLOWS THROUGH THE SCREEN IMMEDIATELY BEFORE REACHING THE FORMING SURFACE.
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |