US3079646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic drafting mechanism
Assignee: Saco Lowell Shops
•
Filing: 1959-07-20
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Granted: 1963-03-05
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Virgil A Burnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:26
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/46; D01H5/54; D01H5/26; D01H5/70; D01H5/74; D01H2700/00; D01H2700/245
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
A TEXTILE DRAFTING MACHINE ASSEMBLY COMPRISING A SERIES OF SPACED APART MAGNETIZED ROLLS DISPOSED ALONG A SLIVER PATH, EACH ROLL HAVING OPPOSED END PORTIONS OF NORTH AND SOUTH MAGNETIC POLARITY, A MATCHING SECOND SERIES OF OTHER ROLLS FORMED OF MAGNETICALLY ATTRACTABLE MATERIAL, EACH OF SAID OTHER ROLLS COOPERATING WITH A MAGNETIZED ROLL OF THE FIRST PLURALITY TO COMPRISE A DRAFTING DEVICE, MEANS POSITIONING EACH OF SAID MAGNETIZED ROLLS SO THAT ITS LEFT END IS OF MATCHING POLARITY WITH THE LEFT ENDS OF EVERY MAGNETIZED ROLL IN SAID SERIES, AND SO THAT ITS RIGHT END IS OF MATCHING POLARITY WITH THE RIGHT ENDS OF EVERY MAGNETIZED ROLL IN SAID SERIES AND OF OPPOSITE POLARITY TO THAT OF THE LEFT END.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |