US3398302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical impulse generator
Assignee: Essex Wire Corp
•
Filing: 1965-10-13
•
Granted: 1968-08-20
•
Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Harnau Hans-Dieter
- 👤 Backstein Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:33
CPC Classifications
H; H02; H02K; H02K39/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3035520A
Cited
US3130332A
Cited
US3153735A
Cited
US3116428A
Cited
US3132268A
Cited
US3259769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |