US3361927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma generating apparatus having an arc restricting region
Assignee: Giannini Scientific Corp
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Filing: 1963-04-22
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Granted: 1968-01-02
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Rolf D Buhler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:35
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/48; H05H1/50; H05H1/26; H05H1/32; H05H1/34; H05H1/3484; H05H1/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
A PLASMA GENERATING DEVICE COMPRISING A FIRST CHAMBER, A SECOND CHAMBER, AN ELONGATED PASSAGEWAY INTERCONNECTING SAID CHAMBERS, SAID PASSAGEWAY AND SAID CHAMBERS BEING SUBSTANTIALLY CIRCULAR IN CROSS SECTION, SAID SECOND CHAMBER HAVING AN OUTLET OPENING OPPOSITE FROM SAID PASSAGEWAY, A FIRST ANNULAR ELECTRODE IN SAID FIRST CHAMBER ADJACENT SAID PASSAGEWAY, A SECOND ANNULAR ELECTRODE IN SAID SECOND CHAMBER ADJACENT SAID PASSAGEWAY, SAID ELECTRODES BEING OF GREATER DIAMETER THAN THE DIAMETER OF SAID PASSAGEWAY, MEANS FOR INTRODUCING GAS INTO SAID FIRST CHAMBER IN A ROTATIONAL FLOW PATTERN, A FIRST COIL CIRCUMSCRIBING SAID FIRST CHAMBER ADJACENT SAID FIRST ELECTRODE, A SECOND COIL CIRCUMSCRIBING SAID SECOND CHAMBER ADJACENT SAID SECOND ELECTRODE,
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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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |