US3049435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for applying tungsten carbide particles to a workpiece surface
Assignee: Individual
•
Filing: 1957-08-19
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Granted: 1962-08-14
•
Expires: 1977-08-19
Abstract
No abstract record available.
Inventors
- 👤 Warren M Shwayder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:04
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/24; B22F9/26; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/327; C23C24/00; C23C24/08; C23C24/10; C23C24/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS OF APPLYING TUNGSTEN CARBIDE PARTICLES TO A FERROUS METAL SURFACE TO IMPART THERETO HARD WEARING AND CUTTING PROPERTIES COMPRISING CRUSHING THE TUNGSTEN CARBIDE TO A PARTICLES SIZE IN THE RANGE OF 1/4 INCH TO 325 MESH, COATING THE PARTICLES WITH A THIN CONTINUOUS FILM OF METALLIC NICKEL, AND THEN APPLYING THE SAID PARTICLES TO THE FERROUS METAL SURFACE WITH SUFFICIENT HEAT TO FUSE THE NICKEL COATING TO THE FERROUS METAL, THEREBY BINDING THE PARTICLES TO THE SURFACE.
Claim 2
Dependent Claim
79 words
A PROCESS OF APPLYING TUNGSTEN CARBIDE PARTICLES TO A FERROUS METAL SURFACE TO IMPART THERETO HARD WEARING AND CUTTING PROPERTIES COMPRISING CRUSHING THE TUNGSTEN CARBIDE TO A PARTICLES SIZE IN THE RANGE OF 1/4 INCH TO 325 MESH, COATING THE PARTICLES WITH A THIN CONTINUOUS FILM OF METALLIC NICKEL, AND THEN APPLYING THE SAID PARTICLES TO THE FERROUS METAL SURFACE WITH SUFFICIENT HEAT TO FUSE THE NICKEL COATING TO THE FERROUS METAL, THEREBY BINDING THE PARTICLES TO THE SURFACE.
References Cited (Backward Citations)
US1565495A
Cited
US2228916A
Cited
US2200742A
Cited
GB596626A
Cited
US2553714A
Cited
US2562587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |