Patent US5443468A successfully refreshed from Google Patents.
US3268640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of film from organic thermoplastic material
Assignee: Crown Packaging UK Ltd
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Filing: 1963-04-15
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Granted: 1966-08-23
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Gerber Kenneth George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:48
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
THE METHOD OF REMOVING SAG, BAFFINESS, AND WRINKLES FROM TUBULAR BIAXIALLY ORINETED ORGANIC THERMOPLASTIC FILM, BY SUBJECTING THE TUBULAR FILM LENGTHWISE ABOUT MENT WHILE PASSING THE TUBULAR FILM LENGTHWISE ABOUT HOLLOW MEMBERS DISPOSED IN SPACED SIDE-BY-SIDE RELATION TO EXTEND LENGTHWISE OF THE TUBE, AND MAINTAINING A CUSHION OF WARM AIR BETWEEN THE TUBULAR FILM AND THOSE PORTIONS OF THE HOLLOW MEMBERS OPPOSED THERETO TO RETAIN THE TUBULAR FILM IN SPACED RELATION WITH SAID MEMBERS.
Claim 2
Independent Claim
74 words
THE METHOD OF REMOVING SAG, BAFFINESS, AND WRINKLES FROM TUBULAR BIAXIALLY ORINETED ORGANIC THERMOPLASTIC FILM, BY SUBJECTING THE TUBULAR FILM LENGTHWISE ABOUT MENT WHILE PASSING THE TUBULAR FILM LENGTHWISE ABOUT HOLLOW MEMBERS DISPOSED IN SPACED SIDE-BY-SIDE RELATION TO EXTEND LENGTHWISE OF THE TUBE, AND MAINTAINING A CUSHION OF WARM AIR BETWEEN THE TUBULAR FILM AND THOSE PORTIONS OF THE HOLLOW MEMBERS OPPOSED THERETO TO RETAIN THE TUBULAR FILM IN SPACED RELATION WITH SAID MEMBERS.
Claim 3
Dependent Claim
37 words
APPARATUS FOR REMOVING SAG, BAGGINESS, AND WRINKLES FROM TUBULAR BIAXIALLY ORIENTED ORGANIC THERMOPLSTIC FILM, COMPRISING HOLLOW MEMBERS CONNECTABLE WITH A SOURCE OF WARM PRESSURISED AIR AND DISPOSED IN SPACED SIDE-BY-SIDE RELATION, MEANS TO MOVE A BIAXIALLY ORIENTED
Claim 4
Dependent Claim
37 words
APPARATUS FOR REMOVING SAG, BAGGINESS, AND WRINKLES FROM TUBULAR BIAXIALLY ORIENTED ORGANIC THERMOPLSTIC FILM, COMPRISING HOLLOW MEMBERS CONNECTABLE WITH A SOURCE OF WARM PRESSURISED AIR AND DISPOSED IN SPACED SIDE-BY-SIDE RELATION, MEANS TO MOVE A BIAXIALLY ORIENTED
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |