Patent CH134212A successfully refreshed from Google Patents.
US2509845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming ribbons of glass and other thermoplastic materials
Assignee: Owens Corning
•
Filing: 1942-12-09
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Granted: 1950-05-30
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Expires: 1962-12-09
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:34
CPC Classifications
C; C03; C03B; C03B17/00; C03B17/06; C03B17/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
APPARATUS FOR PRODUCING A THIN SHEET OF THERMOPLASTIC MATERIAL, COMPRISING A MEMBER ADAPTED TO CONTAIN A SUPPLY OF MOLTEN THERMOPLASTIC MATERIAL AND HAVING A DISCHARGE ORIFICE IN THE FORM OF A NARROW ELONGATED SLOT THROUGH WHICH MOLTEN THERMOPLASTIC MATERIAL FLOWS IN THE FORM OF A THIN RELATIVELY WIDE STREAM, AND FINS SUPPORTED AT AND PROJECTING OUTWARDLY FROM THE DELIVERY SIDE OF THE SLOT ADJACENT OPPOSITE ENDS OF THE SLOT IN POSITIONS TO BE WETTED BY THE THERMOPLASTIC MATERIAL AS THE STREAM FLOWS FROM THE SLOT.
Claim 2
Dependent Claim
85 words
APPARATUS FOR PRODUCING A THIN SHEET OF THERMOPLASTIC MATERIAL, COMPRISING A MEMBER ADAPTED TO CONTAIN A SUPPLY OF MOLTEN THERMOPLASTIC MATERIAL AND HAVING A DISCHARGE ORIFICE IN THE FORM OF A NARROW ELONGATED SLOT THROUGH WHICH MOLTEN THERMOPLASTIC MATERIAL FLOWS IN THE FORM OF A THIN RELATIVELY WIDE STREAM, AND FINS SUPPORTED AT AND PROJECTING OUTWARDLY FROM THE DELIVERY SIDE OF THE SLOT ADJACENT OPPOSITE ENDS OF THE SLOT IN POSITIONS TO BE WETTED BY THE THERMOPLASTIC MATERIAL AS THE STREAM FLOWS FROM THE SLOT.
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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) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |