US2810933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of treating plastic film
Assignee: Union Carbide Corp
•
Filing: 1952-02-09
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Granted: 1957-10-29
•
Expires: 1972-02-09
Abstract
No abstract record available.
Inventors
- 👤 Russell F Pierce
- 👤 Vernie G Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04; B; B29; B29C; B29C59/00; B29C59/10; B41; B41F; B41F23/00; B41F23/007; B41M; B41M1/00; B41M1/26; B41M1/30; B41M1/305; B29K; B29K2023/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN APPARATUS FOR TREATING PLASTIC FILM TO IMPROVE THE ADHESION THEREOF TO INK IMPRESSIONS SUBSEQUENTLY IMPRINTED THEREON COMPRISING A PAIR OF STATIONARY ELECTRODES DISPOSED IN PARALLEL SPACED RELATIONSHIP TO PROVIDE A GAP THEREBETWEEN, MEANS TO PRODUCE HIGH VOLTAGE STRESS ACCOMPAINED BY CORONA DISCHARGE IN SAID GAP, MEANS TO PASS A FILM THROUGH SAID GAP, AND MEANS ON EACH OF THE OP-
Claim 2
Independent Claim
61 words
AN APPARATUS FOR TREATING PLASTIC FILM TO IMPROVE THE ADHESION THEREOF TO INK IMPRESSIONS SUBSEQUENTLY IMPRINTED THEREON COMPRISING A PAIR OF STATIONARY ELECTRODES DISPOSED IN PARALLEL SPACED RELATIONSHIP TO PROVIDE A GAP THEREBETWEEN, MEANS TO PRODUCE HIGH VOLTAGE STRESS ACCOMPAINED BY CORONA DISCHARGE IN SAID GAP, MEANS TO PASS A FILM THROUGH SAID GAP, AND MEANS ON EACH OF THE OP-
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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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |