US2827427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of shaping semiconductive bodies
Assignee: AT&T Inc
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Filing: 1954-12-31
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Granted: 1958-03-18
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Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Barry
- 👤 Norman C Seeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:46
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/02; C25F3/12; B; B23; B23H; B23H7/00; B23H7/02; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
THE METHOD OF PRODUCING A STRAIN-FREE PLANAR CUT IN A GERMANIUM BODY WHICH COMPRISES RIGIDLY SUPPORTING A STATIONARY THIN STRAIGHT WIRE ELECTRODE, APPLYING A STREAM OF ELECTROLYTE ALONG THE LENGTH OF THE ELECTRODE, LIMITING THE EXTENT OF THE ELECTROLYTE ON THE ELECTRODE TO THAT SUSTAINED THEREON BY ADHESIVE AND SURFACE TENSION FORCES, FORMING A RECTANGULAR BAR OF GERMANIUM, SECURING THE BAR ON A MOVABLE CARRIAGE WITH ITS AXIS PERPENDICULAR AND ONE FACE PARALLEL TO THE ELECTRODE, APPLYING A POTENTIAL BETWEEN THE BAR AND THE ELECTRODE, ADVANCING THE BAR TOWARD THE ELECTRODE ALONG A STRAIGHT PATH PERPENDICULAR TO ITS AXIS AND INTERSECTING THE ELECTRODE AT A UNIFORM RATE, AND PASSING A CONSTANT CURRENT THROUGH THE ELECTROLYTE AND BETWEEN THE ANODIC BAR AND THE CATHODIC WIRE OF SUFFICIENT MAGNITUDE TO MAINTAIN A GAP BETWEEN THE ELECTRODE AND THE BAR.
Claim 2
Independent Claim
137 words
THE METHOD OF PRODUCING A STRAIN-FREE PLANAR CUT IN A GERMANIUM BODY WHICH COMPRISES RIGIDLY SUPPORTING A STATIONARY THIN STRAIGHT WIRE ELECTRODE, APPLYING A STREAM OF ELECTROLYTE ALONG THE LENGTH OF THE ELECTRODE, LIMITING THE EXTENT OF THE ELECTROLYTE ON THE ELECTRODE TO THAT SUSTAINED THEREON BY ADHESIVE AND SURFACE TENSION FORCES, FORMING A RECTANGULAR BAR OF GERMANIUM, SECURING THE BAR ON A MOVABLE CARRIAGE WITH ITS AXIS PERPENDICULAR AND ONE FACE PARALLEL TO THE ELECTRODE, APPLYING A POTENTIAL BETWEEN THE BAR AND THE ELECTRODE, ADVANCING THE BAR TOWARD THE ELECTRODE ALONG A STRAIGHT PATH PERPENDICULAR TO ITS AXIS AND INTERSECTING THE ELECTRODE AT A UNIFORM RATE, AND PASSING A CONSTANT CURRENT THROUGH THE ELECTROLYTE AND BETWEEN THE ANODIC BAR AND THE CATHODIC WIRE OF SUFFICIENT MAGNITUDE TO MAINTAIN A GAP BETWEEN THE ELECTRODE AND THE BAR.
References Cited (Backward Citations)
GB335003A
Cited
US2526423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |