US3543505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for relaxing internal tensions of textured synthetic yarns
Assignee: Heberlein Patent Corp
•
Filing: 1969-02-17
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Granted: 1970-12-01
•
Expires: 1989-02-17
Abstract
No abstract record available.
Inventors
- 👤 Otto Titus Stutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:39
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2475922A
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US3091912A
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US3165881A
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US3137119A
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US3318083A
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US3166881A
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US3367096A
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US3438190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |