US3668176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding utilizing thermosetting resins and magnetized filler material
Assignee: Individual
•
Filing: 1970-01-15
•
Granted: 1972-06-06
•
Expires: 1990-01-15
Abstract
Abstract Liquid resins and plastisols can be made to assume and hold desired shapes, or to bridge gaps, not attainable with the present commercially available filled liquid resins or plastic puttys by employing a ''''filler'''' material, which has magnetic property.
Inventors
- 👤 Clyde O Childress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:54
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; H01F1/06; H01F1/08; H01F1/083; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A method according to claim 1 in which the resin is a liquid epoxy resin.
Claim 2
Dependent Claim
21 words
A method according to claim 2 in which the particles of magnetic filler are no more than 74 microns in size.
Claim 3
Dependent Claim
23 words
A method according to claim 5 in which the ceramic magnetic filler is selected from magnetic iron oxide, barium ferrite, and strontium ferrite.
Claim 4
Dependent Claim
15 words
The method as recited in claim 1 wherein said magnetic filler comprises magnetic ceramic magnets.
References Cited (Backward Citations)
CA720477A
Cited
US3068433A
Cited
US3018260A
Cited
US3024711A
Cited
US3117092A
Cited
US3379643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |