US3199740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejection device
Assignee: Bayer AG
•
Filing: 1963-08-07
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Granted: 1965-08-10
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Expires: 1983-08-07
Abstract
No abstract record available.
Inventors
- 👤 Juffa Richard
- 👤 Kruger Helmut
- 👤 Michnelis Rudolf
- 👤 Rehberg Hans-Joachim
- 👤 Schmahl Josef
- 👤 Schulz Hans-Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:40
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/005; B05C17/00593; A; A61; A61C; A61C5/00; A61C5/60; A61C5/62; B05C17/00503; B05C17/00516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN EJECTION DEVICE FOR EXTRUDING THERMOPLASTIC MATERIAL, WHICH COMPRISES: (A) A SUPPORT HOUSING; (B) A TUBULAR EJECTION CYLINDER FOR RECEIVING MATERIAL TO BE EXTRUDED THEREFROM, SAID CYLINDER BEING MADE OF AN ELECTRICALLY CONDUCTIVE MATERIAL HAVING A SELECTED RESISTIVITY FOR HEATING SAID MATERIAL IN RESPONSE TO AN ELECTRICAL CURRENT PASSED THROUGH SAID CYLINDER, THEREBY CONVERTING SAID MATERIAL FROM A SOLID TO A PLASTIC STATE; (C) MEANS CONNECTED TO SAID HOUSING FOR SUPPORTING SAID EJECTION CYLINDER;
Claim 2
Dependent Claim
74 words
AN EJECTION DEVICE FOR EXTRUDING THERMOPLASTIC MATERIAL, WHICH COMPRISES: (A) A SUPPORT HOUSING; (B) A TUBULAR EJECTION CYLINDER FOR RECEIVING MATERIAL TO BE EXTRUDED THEREFROM, SAID CYLINDER BEING MADE OF AN ELECTRICALLY CONDUCTIVE MATERIAL HAVING A SELECTED RESISTIVITY FOR HEATING SAID MATERIAL IN RESPONSE TO AN ELECTRICAL CURRENT PASSED THROUGH SAID CYLINDER, THEREBY CONVERTING SAID MATERIAL FROM A SOLID TO A PLASTIC STATE; (C) MEANS CONNECTED TO SAID HOUSING FOR SUPPORTING SAID EJECTION CYLINDER;
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |