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US2674007A
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Extrusion machine for the production of an insulating covering of an electrical conductor
Assignee: Von Roll Schweiz AG
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Filing: 1952-05-08
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Granted: 1954-04-06
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Expires: 1972-05-08
Abstract
No abstract record available.
Inventors
- 👤 Allemann Ernst
- 👤 Fritschi Ernst
- 👤 Leu Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/14; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/15; B29C48/16; B29C48/17; B29C48/18; B29C48/19; B29C48/20; B29C48/25; B29C48/36; B29C48/361; B29C48/49; H01B7/00; H01B7/36
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) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |