Patent US4412929A successfully refreshed from Google Patents.
US4412929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic wall covering composition
Assignee: Individual
•
Filing: 1982-03-10
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Granted: 1983-11-01
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Expires: 2002-03-10
Abstract
Abstract A magnetic wall covering composition consisting of magnetic iron oxide particles and glue.
Inventors
- 👤 Paul D. Lysenko
- 👤 Natalie Lysenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:38
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/14; H01F41/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A magnetic coating composition consisting of 100 parts by weight of magnetic iron oxide particles, 60-90% of which pass 325 mesh, and 15-25 parts of weight of glue.
Claim 2
Dependent Claim
28 words
A magnetic coating composition consisting of 100 parts by weight of magnetic iron oxide particles, 60-90% of which pass 325 mesh, and 15-25 parts of weight of glue.
References Cited (Backward Citations)
US2564312A
Cited
US3029157A
Cited
FR1297463A
Cited
US3810840A
Cited
US4172176A
Cited
US4201809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |