US3100091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn tensioning device
Assignee: LINDLEY AND CO Inc
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Filing: 1961-03-20
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Granted: 1963-08-06
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Mindheim
- 👤 Howard C Lindemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:06
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/20; B65H59/22; B65H59/225; B65H2555/00; B65H2555/10; B65H2555/13; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A YARN TENSIONING DEVICE COMPRISING A CUP-SHAPED CASE COMPRISING AN OUTER PERIPHERAL WALL AND BOTTOM WALL OF MAGNETIC MATERIAL, AN ANNULAR ELECTROMAGNET COIL RECEIVED IN SAID CASE AND HAVING A CENTRAL HOLE, A LOWER DISK ELEMENT OVERLYING SAID COIL AND HAVING A CENTRAL HOLE, AND AN UPPER DISK ELEMENT OVERLYING SAID LOWER DISK ELEMENT, SAID UPPER DISK ELEMENT HAVING A CENTRAL STEM PORTION OF MAGNETIC MATERIAL EXTENDING DOWN THROUGH THE CENTRAL HOLE OF SAID LOWER DISK ELEMENT AND INTO SAID
Claim 2
Dependent Claim
80 words
A YARN TENSIONING DEVICE COMPRISING A CUP-SHAPED CASE COMPRISING AN OUTER PERIPHERAL WALL AND BOTTOM WALL OF MAGNETIC MATERIAL, AN ANNULAR ELECTROMAGNET COIL RECEIVED IN SAID CASE AND HAVING A CENTRAL HOLE, A LOWER DISK ELEMENT OVERLYING SAID COIL AND HAVING A CENTRAL HOLE, AND AN UPPER DISK ELEMENT OVERLYING SAID LOWER DISK ELEMENT, SAID UPPER DISK ELEMENT HAVING A CENTRAL STEM PORTION OF MAGNETIC MATERIAL EXTENDING DOWN THROUGH THE CENTRAL HOLE OF SAID LOWER DISK ELEMENT AND INTO SAID
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |