Patent US2933415A successfully refreshed from Google Patents.
US2933415A
Expired / Lapsed
US
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Nickel coated iron particles
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1954-12-23
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Granted: 1960-04-19
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Howard J Homer
- 👤 John R Whitacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:14
CPC Classifications
B; B22; B22F; B22F1/00; B22F1/17; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12181; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A MASS OF LOOSE, METALLIZED IRON METAL PARTICLES EACH PARTICLE OF WHICH COMPRISES A VERY THIN METAL COATING OF NICKEL GAS PLATED THEREON IN SUBSTANTIALLY UNIFORM THICKNESS OVER THE SURFACE OF THE IRON PARTICLES, SAID METAL
Claim 2
Dependent Claim
36 words
A MASS OF LOOSE, METALLIZED IRON METAL PARTICLES EACH PARTICLE OF WHICH COMPRISES A VERY THIN METAL COATING OF NICKEL GAS PLATED THEREON IN SUBSTANTIALLY UNIFORM THICKNESS OVER THE SURFACE OF THE IRON PARTICLES, SAID METAL
References Cited (Backward Citations)
US2273704A
Cited
US2398517A
Cited
US2516058A
Cited
US2616165A
Cited
US2649754A
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US2638423A
Cited
US2657129A
Cited
US2657127A
Cited
US2612440A
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US2675147A
Cited
US2685124A
Cited
US2646456A
Cited
US2839423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |