US3533146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system for yarns and threads
Assignee: Heberlein Patent Corp
•
Filing: 1968-08-29
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Granted: 1970-10-13
•
Expires: 1988-08-29
Abstract
No abstract record available.
Inventors
- 👤 Josef Raschle
- 👤 Wilhelm Todt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:54
CPC Classifications
D; D02; D02J; D02J13/00; D02J13/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA718152A
Cited
US2864229A
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US3077724A
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US2993260A
Cited
US3050819A
Cited
US3063124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |