US3149403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded magnetic rolls
Assignee: Maremont Corp
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Filing: 1962-03-28
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Granted: 1964-09-22
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Christoph W Aurich
- 👤 Edward A Bragg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:15
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/46; D01H5/54; D01H5/70; D01H5/74; D01H2700/00; D01H2700/245; Y; Y10; Y10S; Y10S100/00; Y10S100/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A MOLDED MAGNETIC DRAFTING ELEMENT HAVING A CYLINDRICAL PERMANENT MAGENT, AT EACH END OF SAID MAGNET A POLE CONCENTRIC THEREOF AND PERMANENTLY AFFIXED THERETO, SAID POLE PIECES BEING OF EQUAL DIAMETER, GREATER THAN THE DIAMETER OF SAID MAGNET, AND EACH OF SAID POLE PIECES HAVING AN EXPOSED CIRCUMDFERENTIAL SURFACE, A SHELL OF MOLDED PLASTIC MATERIAL EXTENDING BETWEEN SAID POLE PIECES AND ABOUT THE CIRCUMFERENTIAL SURFACE OF SAID MAGNET THEREBY ENCASING SAID MAGNET, A CYLINDRICAL END PORTION OF MOLDED PLASTIC MATERIAL CONCENTRIC OF AND PERMANENTLY AFFIXED TO EACH OF SAID POLE PIECES, SAID END PORTIONS BEING OF EQUAL DIAMETER AND BEING ADAPTED TO HAVE COTS MOUNTED THEREON, AND A COT OF RUBBER-LIKE MATERIAL OF UNIFORM THICKNESS MOUNTED ON EACH OF SAID END PORTION, SAID COTS BEING OF EQUAL THICKNESS AND HAVING INNER DIAMETERS EQUAL TO THE DIAMETERS OF SAID END PORTIONS.
Claim 2
Dependent Claim
140 words
A MOLDED MAGNETIC DRAFTING ELEMENT HAVING A CYLINDRICAL PERMANENT MAGENT, AT EACH END OF SAID MAGNET A POLE CONCENTRIC THEREOF AND PERMANENTLY AFFIXED THERETO, SAID POLE PIECES BEING OF EQUAL DIAMETER, GREATER THAN THE DIAMETER OF SAID MAGNET, AND EACH OF SAID POLE PIECES HAVING AN EXPOSED CIRCUMDFERENTIAL SURFACE, A SHELL OF MOLDED PLASTIC MATERIAL EXTENDING BETWEEN SAID POLE PIECES AND ABOUT THE CIRCUMFERENTIAL SURFACE OF SAID MAGNET THEREBY ENCASING SAID MAGNET, A CYLINDRICAL END PORTION OF MOLDED PLASTIC MATERIAL CONCENTRIC OF AND PERMANENTLY AFFIXED TO EACH OF SAID POLE PIECES, SAID END PORTIONS BEING OF EQUAL DIAMETER AND BEING ADAPTED TO HAVE COTS MOUNTED THEREON, AND A COT OF RUBBER-LIKE MATERIAL OF UNIFORM THICKNESS MOUNTED ON EACH OF SAID END PORTION, SAID COTS BEING OF EQUAL THICKNESS AND HAVING INNER DIAMETERS EQUAL TO THE DIAMETERS OF SAID END PORTIONS.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |