Patent US4516008A successfully refreshed from Google Patents.
Patent US2260367A successfully refreshed from Google Patents.
Patent US2997641A successfully refreshed from Google Patents.
US2997641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma generator device
Assignee: Individual
•
Filing: 1958-05-20
•
Granted: 1961-08-22
•
Expires: 1978-05-20
Abstract
No abstract record available.
Inventors
- 👤 William R Baker
- 👤 Oscar A Anderson
- 👤 Harold P Furth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:19
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/02; Y; Y10; Y10S; Y10S422/00; Y10S422/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |