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US3435307A
Expired / Lapsed
US
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Electrical shock wave devices and control thereof
Assignee: International Business Machines Corp
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Filing: 1966-01-17
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Granted: 1969-03-25
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 Rolf W Landauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:53
CPC Classifications
H; H03; H03B; H03B9/00; H03B9/12; H03K; H03K3/00; H03K3/02; H03K3/42; H10; H10N; H10N80/00
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |