US3086145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic treatment of flexible tubular films
Assignee: British Cellophane Ltd
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Filing: 1960-05-25
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Granted: 1963-04-16
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Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Hood John Laurence Linsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:24
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04; B; B29; B29C; B29C48/00; B29C48/001; B29C48/0018; B29C48/0019; B29C48/0022; B29C48/03; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR THE SUBSTANTIAL ELIMINATION OF ELECTROSTATIC CHARGES FROM THE INNER SURFACE OF A FLEXIBLE TUBULAR FILM OF AN ELECTROSTATIC CHARGE SUSCEPTIBLE MATERIAL WHICH PROCESS COMPRISES INFLATING THE TUBULAR FILM WITH A GASEOUS MEDIUM SUFFICIENT TO SEPARATE CONTACTING PORTIONS OF THE INNER SURFACE OF THE TUBULAR FILM AND TO EXPOSE SUBSTANTIALLY THE ENTIRE INNER SURFACE OF THE TUBULAR FILM TO THE GASEOUS MEDIUM AND IONISING THE GASEOUS MEDIUM TO SUCH A DEGREE THAT ELECTROSTATIC CHARGES PRESENT ON THE INNER SURFACE OF THE TUBULAR FILM ARE SUBSTANTIALLY ELECTRICALLY NEUTRALISED.
Claim 2
Dependent Claim
89 words
A PROCESS FOR THE SUBSTANTIAL ELIMINATION OF ELECTROSTATIC CHARGES FROM THE INNER SURFACE OF A FLEXIBLE TUBULAR FILM OF AN ELECTROSTATIC CHARGE SUSCEPTIBLE MATERIAL WHICH PROCESS COMPRISES INFLATING THE TUBULAR FILM WITH A GASEOUS MEDIUM SUFFICIENT TO SEPARATE CONTACTING PORTIONS OF THE INNER SURFACE OF THE TUBULAR FILM AND TO EXPOSE SUBSTANTIALLY THE ENTIRE INNER SURFACE OF THE TUBULAR FILM TO THE GASEOUS MEDIUM AND IONISING THE GASEOUS MEDIUM TO SUCH A DEGREE THAT ELECTROSTATIC CHARGES PRESENT ON THE INNER SURFACE OF THE TUBULAR FILM ARE SUBSTANTIALLY ELECTRICALLY NEUTRALISED.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |