Patent US3288638A successfully refreshed from Google Patents.
US3288638A
Expired / Lapsed
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Method and apparatus for the treatment of plastic materials
Assignee: Lockheed Martin Corp
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Filing: 1962-10-09
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Granted: 1966-11-29
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Expires: 1982-10-09
Abstract
No abstract record available.
Inventors
- 👤 Hugo L L Van Paassen
- 👤 Guimento Angelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:50
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/14; B29K; B29K2023/00; B29K2027/00; B29K2027/12; B29K2027/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN A PROCESS FOR IMPROVIDING THE ADHERENT CHARACTERISTICS OF A SURFACE OF A POLYETHYLENE PLASTIC MATERIAL THE STEPS OF: (A) ESTABLISHING A GASEOUS DISCHARGE BETWEEN A HOLLOW CATHODE AND AN ANODE SPACED A DISTANCE THEREFROM, AND SAID HOLLOW CATHODE BEING IN THE FORM OF A CAN HAVING AN APERTURE IN EACH END THEREOF OF SUFFICIENT SIZE TO PERMIT SAID MATERIAL TO BE PASSED THERETHROUGH; AND (B) PASSING SAID MATERIAL THROUGH SAID APERTURES.
Claim 2
Dependent Claim
72 words
IN A PROCESS FOR IMPROVIDING THE ADHERENT CHARACTERISTICS OF A SURFACE OF A POLYETHYLENE PLASTIC MATERIAL THE STEPS OF: (A) ESTABLISHING A GASEOUS DISCHARGE BETWEEN A HOLLOW CATHODE AND AN ANODE SPACED A DISTANCE THEREFROM, AND SAID HOLLOW CATHODE BEING IN THE FORM OF A CAN HAVING AN APERTURE IN EACH END THEREOF OF SUFFICIENT SIZE TO PERMIT SAID MATERIAL TO BE PASSED THERETHROUGH; AND (B) PASSING SAID MATERIAL THROUGH SAID APERTURES.
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |