US3009231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat-stretching of synthetic polymer threads
Assignee: Glanzstoff AG
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Filing: 1958-06-16
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Granted: 1961-11-21
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Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Kleekamm Fritz
- 👤 Siggel Erhard
- 👤 Rack Theo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/04; B21D5/042; D; D02; D02J; D02J1/00; D02J1/22; D02J1/224
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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |