US3437864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing high temperature,low pressure plasma
Assignee: Boeing Co
•
Filing: 1966-08-29
•
Granted: 1969-04-08
•
Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Melvin J Kofoid
- 👤 Paul L Zieske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:56
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE METHOD OF EFFICIENTLY PRODUCING A HIGH TEMPERATURE, LOW PRESSURE PLASMA COMPRISING THE STEPS: (A) PASSING A GAS THROUGH A LOW PRESSURE CHAMBER; AND (B) SUBEJCTING THE GAS, WHILE PASSING THROUGH THE LOW PRESSURE CHAMBER, SIMULTANEOUSLY TO PARALLEL AND SUBSTANTIALLY EQUAL ALTERNATING AND STEADY MAGNETIC FIELDS.
Claim 2
Independent Claim
46 words
THE METHOD OF EFFICIENTLY PRODUCING A HIGH TEMPERATURE, LOW PRESSURE PLASMA COMPRISING THE STEPS: (A) PASSING A GAS THROUGH A LOW PRESSURE CHAMBER; AND (B) SUBEJCTING THE GAS, WHILE PASSING THROUGH THE LOW PRESSURE CHAMBER, SIMULTANEOUSLY TO PARALLEL AND SUBSTANTIALLY EQUAL ALTERNATING AND STEADY MAGNETIC FIELDS.
References Cited (Backward Citations)
US3297465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |