US3230127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming plastic coated articles
Assignee: Dow Chemical Co
•
Filing: 1962-03-05
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Granted: 1966-01-18
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Cleereman
- 👤 Donald J Dirkse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:29
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/504; B29C70/506; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/68; B29C70/685; B29C70/687; B29D; B29D30/00; B29D30/06; B29D30/38; B29D2030/381; Y; Y10; Y10S; Y10S425/00; Y10S425/235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PROCESS FOR ENCAPSULATING A CONTINUOUSLY MOVING STRIP OF MATERIAL BETWEEN CONVERGING HOT EXTRUDED THERMOPLASTIC RESINOUS FILMS UNDER CONDITIONS WHEREIN MILL BANKS OF SOME OF THE HOT PLASTIC ARE FORMED ADJACENT THE NIP OF A PAIR OF PINCH ROLLERS, SAID PROCESS COMPRISING THE STEPS OF EXTRUDING SAID FILM ONTO OPPOSITE SIDES OF SAID STRIP MATERIAL BEFORE THE ENGAGED PORTIONS OF THE LATTER REACH SAID MILL BANKS AND THE NIP OF SAID ROLLERS, PASING SAID STRIP MATERIAL WITH THE FILMS ENGAGED ON OPPOSITE SIDES THEREOF INTO SAID MILL BANKS, PRESSING SAID FILMS ABOUT SAID STRIP MATERIAL AGAINST SAID PINCH ROLLERS, THE DIRECTION OF TRAVEL OF SAID ROLERS AT THE POINT AT WHICH SAID STRIP MATERIAL PASSES THEREBETWEEN BEING ESSENTIALLY THE SAME DIRECTION OF TRAVEL AS THAT OF SAID STRIP MATERIAL, WHEREIN SAID FILMS ARE HEAT SEALED TOGETHER LOCKING SAID STRIP THEREBETWEEN.
Claim 2
Dependent Claim
140 words
A PROCESS FOR ENCAPSULATING A CONTINUOUSLY MOVING STRIP OF MATERIAL BETWEEN CONVERGING HOT EXTRUDED THERMOPLASTIC RESINOUS FILMS UNDER CONDITIONS WHEREIN MILL BANKS OF SOME OF THE HOT PLASTIC ARE FORMED ADJACENT THE NIP OF A PAIR OF PINCH ROLLERS, SAID PROCESS COMPRISING THE STEPS OF EXTRUDING SAID FILM ONTO OPPOSITE SIDES OF SAID STRIP MATERIAL BEFORE THE ENGAGED PORTIONS OF THE LATTER REACH SAID MILL BANKS AND THE NIP OF SAID ROLLERS, PASING SAID STRIP MATERIAL WITH THE FILMS ENGAGED ON OPPOSITE SIDES THEREOF INTO SAID MILL BANKS, PRESSING SAID FILMS ABOUT SAID STRIP MATERIAL AGAINST SAID PINCH ROLLERS, THE DIRECTION OF TRAVEL OF SAID ROLERS AT THE POINT AT WHICH SAID STRIP MATERIAL PASSES THEREBETWEEN BEING ESSENTIALLY THE SAME DIRECTION OF TRAVEL AS THAT OF SAID STRIP MATERIAL, WHEREIN SAID FILMS ARE HEAT SEALED TOGETHER LOCKING SAID STRIP THEREBETWEEN.
References Cited (Backward Citations)
US2091124A
Cited
GB681872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |