Patent US3277227A successfully refreshed from Google Patents.
US3277227A
Expired / Lapsed
US
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Manufacture of polyolefin films
Assignee: Kalle GmbH and Co KG
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Filing: 1962-04-18
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Granted: 1966-10-04
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Kesseler Helmut
- 👤 Gleffe Klaus Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:34
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/915; B29C48/917; B29C48/03; B29C48/07; B29C48/08; B29C48/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS WHICH COMPRISES EXTRUDING MOLTEN, THERMOPLASTIC, FILM-FORMING, SYNTHETIC POLYMERIC MATERIAL IN THE FORM OF A THIN FILM ONTO A MOVING AQUENCHING SURFACE, AND DIRECTING A GAS JET HAVING A SLIP-IMPROVING AGENT DISPOSED THEREIN OVER THE ENTIRE WIDTH OF THE FILM BEFORE THE
Claim 2
Dependent Claim
43 words
A PROCESS WHICH COMPRISES EXTRUDING MOLTEN, THERMOPLASTIC, FILM-FORMING, SYNTHETIC POLYMERIC MATERIAL IN THE FORM OF A THIN FILM ONTO A MOVING AQUENCHING SURFACE, AND DIRECTING A GAS JET HAVING A SLIP-IMPROVING AGENT DISPOSED THEREIN OVER THE ENTIRE WIDTH OF THE FILM BEFORE THE
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |