Patent US3140325A successfully refreshed from Google Patents.
US3140325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of molded bodies
Assignee: Individual
•
Filing: 1958-07-24
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Granted: 1964-07-07
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Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Graff Roderich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:18
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/26; F28F9/262; F28F9/264; B; B29; B29C; B29C51/00; B29C51/10; B29C70/00; B29C70/04; B29C70/28; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T156/1048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE PROCESS FOF MANUFACTURING REINFORCED SYNTHETIC THERMOSETTING PLASTIC MOLDED BODIES OF SPHERICAL AND VARIOUS GEOMETRICAL SHAPES WHICH COMPRISES: INTERPOSING A FLAT LAYER OF REINFORCING MATERIAL WHICH HAS BEEN IMPREGNATED WITH A SYNTHETIC THERMOSETTING PLASTIC RESIN BETWEEN TWO FOILS WHILE THE THERMOSETTING PLASTIC RESIN IS IN A LIQUID AND VISCOUS CONDITION TO FORM A MOLDING ASSEMBLY; SECURING THE EDGES OF THE ASSEMBLY AGAINST MOVEMENT; APPLYING A FLUID PRESSURE DIFFERENTIAL TO THE OPPOSITE SIDES OF THE ASSEMBLY TO MOLD THE ASSEMBLY TO A DESIRED SHAPE; AND THEREAFTER HARDENING SAID RESIN TO RETAIN THE MOLDED SHAPE OF THE ASSEMBLY.
Claim 2
Dependent Claim
96 words
THE PROCESS FOF MANUFACTURING REINFORCED SYNTHETIC THERMOSETTING PLASTIC MOLDED BODIES OF SPHERICAL AND VARIOUS GEOMETRICAL SHAPES WHICH COMPRISES: INTERPOSING A FLAT LAYER OF REINFORCING MATERIAL WHICH HAS BEEN IMPREGNATED WITH A SYNTHETIC THERMOSETTING PLASTIC RESIN BETWEEN TWO FOILS WHILE THE THERMOSETTING PLASTIC RESIN IS IN A LIQUID AND VISCOUS CONDITION TO FORM A MOLDING ASSEMBLY; SECURING THE EDGES OF THE ASSEMBLY AGAINST MOVEMENT; APPLYING A FLUID PRESSURE DIFFERENTIAL TO THE OPPOSITE SIDES OF THE ASSEMBLY TO MOLD THE ASSEMBLY TO A DESIRED SHAPE; AND THEREAFTER HARDENING SAID RESIN TO RETAIN THE MOLDED SHAPE OF THE ASSEMBLY.
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |