Patent US3555601A successfully refreshed from Google Patents.
US3555601A
Expired / Lapsed
US
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Apparatus for continuously forming conical shaped cleats on a thermoplastic sheet
Assignee: Individual
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Filing: 1968-07-30
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Granted: 1971-01-19
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Expires: 1988-07-30
Abstract
Abstract THE INVENTION COMPRISES A MACHINE FOR FORMING IN A CONTINUOUS MANNER A THERMOPLASTIC SHEET WITH SPACED CONICAL-SHAPED CLEATS WHEREBY AS THE HOT THERMOPLASTIC SHEET ENGAGES THE ROLLER CONTAINING THE ROWS OF CONICAL CAVITIES THE THERMOPLASTIC MATERIAL WILL ENTER THE CONICAL CAVITIES AND DISPLACE THE AIR IN SAID CAVITIES AND VENT THE AIR TO AN ANNULAR CHANNEL WHICH IS ALINED WITH EACH ROW OF CONICAL CAVITIES, AND FROM SAID ANNULAR CHANNEL THE DISPLACED AIR WILL BE VENTED TO THE ATMOSPHERE THROUGH PASSAGE OF THE AIR FROM THE UNCOVERED CONICAL CAVITIES OF SAID ROLLER.
Inventors
- 👤 Harold Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:22
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/06; B29C43/00; B29C43/22; B29C43/222; B29C33/00; B29C33/10; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/12; B29C48/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |