US3385966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corona discharge electrodes of opposing polarity rotatable about a common axis to treat polymer surfaces
Assignee: Union Carbide Corp
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Filing: 1964-12-30
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Granted: 1968-05-28
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Expires: 1984-12-30
Abstract
No abstract record available.
Inventors
- 👤 Louis A Rosenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:40
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/26; B26F1/28; B29; B29C; B29C59/00; B29C59/10; H; H01; H01T; H01T19/00
Claims Analysis
Total Claims: 0
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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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |