Patent US3444683A successfully refreshed from Google Patents.
US3444683A
Expired / Lapsed
US
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Manufacture of endless threadlike products of thermoplastic materials
Assignee: Oerlikon Barmag AG
•
Filing: 1967-07-17
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Granted: 1969-05-20
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Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Rolf Hessenbruch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:24
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US868193A
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US1585617A
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US1994057A
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US2728950A
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US3003304A
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US2883822A
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US3164948A
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US3193904A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |