US2969475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and installation for carrying out glow discharge processes
Assignee: Elektrophysikalische Anstalt Bernhard Berghaus
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Filing: 1957-07-15
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Granted: 1961-01-24
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Expires: 1977-07-15
Abstract
No abstract record available.
Inventors
- 👤 Berghaus Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/32009; H01J37/32018; B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088
Claims Analysis
Total Claims: 0
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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) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |