US3407281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma producing apparatus
Assignee: Cabot Corp
•
Filing: 1967-09-20
•
Granted: 1968-10-22
•
Expires: 1987-09-20
Abstract
No abstract record available.
Inventors
- 👤 Michael J Greene
- 👤 Charles B Wendell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:23
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2769079A
Cited
US2819423A
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US2922869A
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US3042830A
Cited
US3264508A
Cited
US3194941A
Cited
US3200233A
Cited
US3327040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |