Patent US3543501A successfully refreshed from Google Patents.
US3543501A
Expired / Lapsed
US
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Tension control for rigid stranders
Assignee: WANSKUCK Co
•
Filing: 1968-07-10
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Granted: 1970-12-01
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Expires: 1988-07-10
Abstract
No abstract record available.
Inventors
- 👤 Konrad C Schillebeeckx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:39
CPC Classifications
D; D07; D07B; D07B7/00; D07B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123968A
Cited
FR723566A
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US2464469A
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US2499246A
Cited
DE885967C
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US2800205A
Cited
FR1118937A
Cited
US3271942A
Cited
US3374810A
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 |