US3021275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge apparatus for treatment of plastic materials
Assignee: Individual
•
Filing: 1956-12-20
•
Granted: 1962-02-13
•
Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Sestini Amerigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:52
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/10; B29C59/103; B29D; B29D7/00; B29C71/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2526724A
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US2666129A
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US2779848A
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US2691613A
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US2810933A
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US2910723A
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US2859480A
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US2864756A
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US2802085A
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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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |