US2622048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External powder scarfing process and apparatus
Assignee: Union Carbide Corp
•
Filing: 1950-04-18
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Granted: 1952-12-16
•
Expires: 1970-04-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred Moesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:22
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
PROCESS OF DESURFACING A REFRACTORY METAL BODY, WHICH COMPRISES APPLYING PREHEAT TO A LOCAL SURFACE PORTION OF SUCH BODY, DISCHARGING A RELATIVELY FLAT STREAM OF OXIDIZING GAS AT ACUTE ANGLE AGAINST SUCH HEATED PORTION, AND DISCHARGING A SEPARATE CONTINUOUS RELATIVELY FLAT STEAM OF GAS CONTAINING UNIFORMLY TRANSVERSELY DISTRIBUTED POWDERED SOLID FUEL AT AN ACUTE ANGLE TOWARD SUCH OXIDIZING GAS STREAM, SO THAT THE CENTRAL PLANES OF SUCH STEAMS IN THE DIRECTION OF
Claim 2
Dependent Claim
72 words
PROCESS OF DESURFACING A REFRACTORY METAL BODY, WHICH COMPRISES APPLYING PREHEAT TO A LOCAL SURFACE PORTION OF SUCH BODY, DISCHARGING A RELATIVELY FLAT STREAM OF OXIDIZING GAS AT ACUTE ANGLE AGAINST SUCH HEATED PORTION, AND DISCHARGING A SEPARATE CONTINUOUS RELATIVELY FLAT STEAM OF GAS CONTAINING UNIFORMLY TRANSVERSELY DISTRIBUTED POWDERED SOLID FUEL AT AN ACUTE ANGLE TOWARD SUCH OXIDIZING GAS STREAM, SO THAT THE CENTRAL PLANES OF SUCH STEAMS IN THE DIRECTION OF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |