Patent US2774989A successfully refreshed from Google Patents.
US2774989A
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Molding apparatus
Assignee: Warner Hudnut Inc
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Filing: 1953-03-26
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Granted: 1956-12-25
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Expires: 1973-03-26
Abstract
No abstract record available.
Inventors
- 👤 Crammond Peter
- 👤 Denney John Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:25
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/02; B29C31/00; B29C31/04; B29C31/042; B29C39/22; B29C39/24; B29C33/00; B29C33/0022; B29L; B29L2031/00; B29L2031/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
APPARATUS FOR MOLDING THERMOPLASTIC MATERIALS COMPRISING A CHAMBER ADAPTED TO CONTAIN THERMOPLASTIC MATERIAL IN THE MOLTEN STATE, SAID CHAMBER HAVING SIDE WALLS AND A BOTTOM, A HEATING JACKET SURROUNDING SAID CHAMBER AND SPACED FROM SAID SIDE WALLS AND BOTTOM OF SAID CHAMBER, A PLURALITY OF POURING SPOUTS OPEN AT EACH END EXTENDING DOWNWARDLY FROM THE BOTTOM OF SAID CHAMBER AND THROUGH THE BOTTOM OF SAID HEATING JACKET, VALVES POSITIONED AT THE UPPER END OF EACH OF SAID POURING SPOUTS, THE UPPER ENDS OF SAID POURING SPOUTS COMPRISING VALVE
Claim 2
Dependent Claim
88 words
APPARATUS FOR MOLDING THERMOPLASTIC MATERIALS COMPRISING A CHAMBER ADAPTED TO CONTAIN THERMOPLASTIC MATERIAL IN THE MOLTEN STATE, SAID CHAMBER HAVING SIDE WALLS AND A BOTTOM, A HEATING JACKET SURROUNDING SAID CHAMBER AND SPACED FROM SAID SIDE WALLS AND BOTTOM OF SAID CHAMBER, A PLURALITY OF POURING SPOUTS OPEN AT EACH END EXTENDING DOWNWARDLY FROM THE BOTTOM OF SAID CHAMBER AND THROUGH THE BOTTOM OF SAID HEATING JACKET, VALVES POSITIONED AT THE UPPER END OF EACH OF SAID POURING SPOUTS, THE UPPER ENDS OF SAID POURING SPOUTS COMPRISING VALVE
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) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |