US3431384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for cutting wire by wire-melting electrical pulses
Assignee: Unisys Corp
•
Filing: 1965-09-24
•
Granted: 1969-03-04
•
Expires: 1985-09-24
Abstract
No abstract record available.
Inventors
- 👤 John H Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:18
CPC Classifications
B; B26; B26F; B26F3/00; B26F3/06; B23; B23K; B23K11/00; B23K11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1319085A
Cited
US1118418A
Cited
US2421537A
Cited
US2606266A
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US2706231A
Cited
US3211885A
Cited
US3351740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |