US3405301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing quiescent plasma
Assignee: Panasonic Holdings Corp
•
Filing: 1966-03-02
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Granted: 1968-10-08
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Hayakawa Shigeru
- 👤 Wasa Kiyotaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:04
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/34; C23C14/35; H; H01; H01J; H01J37/00; H01J37/32; H01J37/34; H01J37/3402; H05; H05H; H05H1/00; H05H1/24; H05H1/47; H05H1/473; H05H1/48; H05H1/50
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |