Patent US3118808A successfully refreshed from Google Patents.
US3118808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for shaping and compressing on a mould sheets of plastic material, particularly asbestos cement
Assignee: Individual
•
Filing: 1961-07-06
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Granted: 1964-01-21
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Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Marchioli Giorgio
- 👤 Gremigni Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:09
CPC Classifications
B; B28; B28B; B28B3/00; B28B3/003; B28B1/00; B28B1/52; B28B1/528; Y; Y10; Y10S; Y10S264/00; Y10S264/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
AN APPARATUS FOR COMPRESSING CORRUGATED SHEETS OF CEMENT-ASBESTOS COMPRISING (A) A TUBULAR, CYLINDRICAL HOUSING OF ONE-PIECE CONSTRUCTION IN PLANES PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE HOUSING, (B) RIGID UPPER AND LOWER SUPPORTS OF SEGMENTAL CROSSSECTIONAL SHAPE FITTING CLOSELY IN SAID HOUSING AGAINST THE INNER SURFACE OF THE LATTER AND HAVING SPACED APART, PARALLEL PLANE SURFACES EXTENDING CHORDALLY ACROSS THE HOUSING AND BETWEEN WHICH OPENINGS ARE DEFINED AT THE OPPOSITE ENDS OF THE HOUSING, (C) A RIGID MOUND SLIDABLE ON SAID PLANE SURFACE OF THE LOWER SUPPORT FOR INSERTION INTO, AND REMOVAL FROM SAID HOUSING THROUGH ONE OF SAID END OPENINGS AND ALSO FITTING CLOSELY IN SAID HOUSING, SAID MOLD HAVING A CONTOURED UPPER SURFACE WITH LONGITUDINALLY EXTENDING UNDULATIONS CORRESONDING TO THE CORRUGESTIONS OF THE CEMENT-ASBESTOS SHEET TO BE COMPRESSED THEREON, (D) A HOLLOW INFLATALBE BODY SUSPENDED FROM SAID UPPER SUPPORT AND HAVING A PLANE UPPER SURFACE ENGAGING SAID PLANE SURFACE OF THE UPPER SUPPORT AND A CONTOURED LOWER SURFACE WITH LONGITUDINALLY EXTENDING UNDULATIONS ALSO CORRESPONDING TO THE CORRUGATIONS OF THE CEMENT-ASBESTOS SHEET TO BE COMPRESSED AGAINST SAID MOULD,
Claim 2
Independent Claim
179 words
AN APPARATUS FOR COMPRESSING CORRUGATED SHEETS OF CEMENT-ASBESTOS COMPRISING (A) A TUBULAR, CYLINDRICAL HOUSING OF ONE-PIECE CONSTRUCTION IN PLANES PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE HOUSING, (B) RIGID UPPER AND LOWER SUPPORTS OF SEGMENTAL CROSSSECTIONAL SHAPE FITTING CLOSELY IN SAID HOUSING AGAINST THE INNER SURFACE OF THE LATTER AND HAVING SPACED APART, PARALLEL PLANE SURFACES EXTENDING CHORDALLY ACROSS THE HOUSING AND BETWEEN WHICH OPENINGS ARE DEFINED AT THE OPPOSITE ENDS OF THE HOUSING, (C) A RIGID MOUND SLIDABLE ON SAID PLANE SURFACE OF THE LOWER SUPPORT FOR INSERTION INTO, AND REMOVAL FROM SAID HOUSING THROUGH ONE OF SAID END OPENINGS AND ALSO FITTING CLOSELY IN SAID HOUSING, SAID MOLD HAVING A CONTOURED UPPER SURFACE WITH LONGITUDINALLY EXTENDING UNDULATIONS CORRESONDING TO THE CORRUGESTIONS OF THE CEMENT-ASBESTOS SHEET TO BE COMPRESSED THEREON, (D) A HOLLOW INFLATALBE BODY SUSPENDED FROM SAID UPPER SUPPORT AND HAVING A PLANE UPPER SURFACE ENGAGING SAID PLANE SURFACE OF THE UPPER SUPPORT AND A CONTOURED LOWER SURFACE WITH LONGITUDINALLY EXTENDING UNDULATIONS ALSO CORRESPONDING TO THE CORRUGATIONS OF THE CEMENT-ASBESTOS SHEET TO BE COMPRESSED AGAINST SAID MOULD,
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |