US3144682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruder
Assignee: OI Glass Inc
•
Filing: 1961-09-22
•
Granted: 1964-08-18
•
Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Henry W Thielfoldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:36
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/325; B29C48/03; B29C48/09; B29C49/00; B29C49/02; B29C49/04; B29C49/04116
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN EXTRUDER COMPRISING A FIRST HOLLOW DIE MEMBER HAVING A CYLINDRICAL INNER WALL; A SECOND HOLLOW DIE MEMBER HAVING A CYLINDRICAL OUTER WALL CONTIGUOUS WITH THE CYLINDRICAL INNER WALL OF SAID FIRST DIE MEMBER; A PIN MEMBER PROJECTING INTO SAID DIE MEMBERS AT LEAST TO A PLANE COINCIDING WITH THE BOTTOM FACE OF SAID FIRST DIE MEMBER AND POSITIONED CONCENTRICALLY WITHIN SAID SECOND DIE MEMBER AND SPACED THEREFROM TO FORM AN ANNULAR ZONE THEREWITH, MEANS FOR SUPPLYING PLASTIC MATERIAL TO SAID ANNULAR ZONE; AND MEANS FOR MOVING ONE OF SAID DIE MEMBERS RELATIVE TO THE OTHER TO RAISE THE END OF SAID
Claim 2
Dependent Claim
102 words
AN EXTRUDER COMPRISING A FIRST HOLLOW DIE MEMBER HAVING A CYLINDRICAL INNER WALL; A SECOND HOLLOW DIE MEMBER HAVING A CYLINDRICAL OUTER WALL CONTIGUOUS WITH THE CYLINDRICAL INNER WALL OF SAID FIRST DIE MEMBER; A PIN MEMBER PROJECTING INTO SAID DIE MEMBERS AT LEAST TO A PLANE COINCIDING WITH THE BOTTOM FACE OF SAID FIRST DIE MEMBER AND POSITIONED CONCENTRICALLY WITHIN SAID SECOND DIE MEMBER AND SPACED THEREFROM TO FORM AN ANNULAR ZONE THEREWITH, MEANS FOR SUPPLYING PLASTIC MATERIAL TO SAID ANNULAR ZONE; AND MEANS FOR MOVING ONE OF SAID DIE MEMBERS RELATIVE TO THE OTHER TO RAISE THE END OF SAID
References Cited (Backward Citations)
CA603517A
Cited
US2044961A
Cited
FR1025834A
Cited
US2750625A
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US2632202A
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US2780835A
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GB752056A
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US3023461A
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US3019481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |