US3144327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-boron alloys and method of making same
Assignee: Individual
•
Filing: 1962-01-02
•
Granted: 1964-08-11
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Ernest C Schmidt
- 👤 James C Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:14
CPC Classifications
C; C22; C22C; C22C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A METHOD OF MAKING HOMOGENEOUS, ALLOY-LIKE, COPPER-BORON COMPOSITIONS COMPRISING PREPARING A MIXTURE OF COPPER AND BORON AND HEATING SAID MIXTURE TO ABOVE ABOUT 2000*C. IN AN INERT ATMOSPHERE AND UNDER A PRESSURE BETWEEN ABOUT 2 AND 5 ATMOSPHERES ABSOLUTE PRESSURE.
Claim 2
Independent Claim
40 words
A METHOD OF MAKING HOMOGENEOUS, ALLOY-LIKE, COPPER-BORON COMPOSITIONS COMPRISING PREPARING A MIXTURE OF COPPER AND BORON AND HEATING SAID MIXTURE TO ABOVE ABOUT 2000*C. IN AN INERT ATMOSPHERE AND UNDER A PRESSURE BETWEEN ABOUT 2 AND 5 ATMOSPHERES ABSOLUTE PRESSURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |