US2806596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal extrusion process
Assignee: Individual
•
Filing: 1953-05-07
•
Granted: 1957-09-17
•
Expires: 1973-05-07
Abstract
No abstract record available.
Inventors
- 👤 Harry W Dodds
- 👤 Sawyer Charles Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:39
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
40 words
A METHOD OF DEFORMING BERYLLIUM WHICH COMPRISES HEATING THE METAL TO A TEMPERATURE BETWEEN 300* AND 500*C. AND FORCING THE METAL THROUGH A DIE FACED WITH A LUBRICANT WASHER SELECTED FROM THE GROUP CONSISTING OF GRAPHITE AQUADAG AND MOLYBDENUM SULFIDE.
Claim 2
Independent Claim
40 words
A METHOD OF DEFORMING BERYLLIUM WHICH COMPRISES HEATING THE METAL TO A TEMPERATURE BETWEEN 300* AND 500*C. AND FORCING THE METAL THROUGH A DIE FACED WITH A LUBRICANT WASHER SELECTED FROM THE GROUP CONSISTING OF GRAPHITE AQUADAG AND MOLYBDENUM SULFIDE.
Claim 3
Independent Claim
30 words
A METHOD OF EXTRUDING BERYLLIUM WHICH COMPRISES HEATING THE BERYLLIUM TO A TEMPERATURE IN THE RANGE OF 300*-500*C. AND FORCING THE BERYLLIUM THROUGH A DIE FACED WITH A GRAPHITE WASHER.
Claim 4
Independent Claim
30 words
A METHOD OF EXTRUDING BERYLLIUM WHICH COMPRISES HEATING THE BERYLLIUM TO A TEMPERATURE IN THE RANGE OF 300*-500*C. AND FORCING THE BERYLLIUM THROUGH A DIE FACED WITH A GRAPHITE WASHER.
References Cited (Backward Citations)
US2653494A
Cited
US2630220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |