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US3017486A
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US
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Perforation of webs by electrical discharges
Assignee: CROSFIELD J F Ltd
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Filing: 1960-03-23
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Granted: 1962-01-16
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Expires: 1980-03-23
Abstract
No abstract record available.
Inventors
- 👤 Kogan Philip
- 👤 Wolanek Hilardy
- 👤 Wagner Raphael Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:34
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/26; B26F1/28; Y; Y10; Y10T; Y10T83/00; Y10T83/364
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |