Patent US2773925A successfully refreshed from Google Patents.
US2773925A
Expired / Lapsed
US
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Electrical translator and methods
Assignee: GTE Sylvania Inc
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Filing: 1951-03-10
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Granted: 1956-12-11
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Expires: 1971-03-10
Abstract
No abstract record available.
Inventors
- 👤 Bernard J Rothlein
- 👤 Frieda A Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
H; H10; H10D; H10D99/00; B; B21; B21J; B21J7/00; B21J7/02; B21J7/14; B21J7/16; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/18; H10F77/00; H10F77/70; H10F77/703; H10F99/00; H10P; H10P36/00; H10P95/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE METHOD OF PRODUCING A LOCALIZED INHOMOGENEITY IN GERMANIUM INCLUDING THE STEPS OF EXPOSING THE SURFACE OF A BODY OF GERMANIUM TO THE ACTION OF A GRANULE OF ZINC AT A TEMPERATURE IN THE RANGE 600 TO 800* CENTIGRADE, GRADUALLY COOLING THE GERMANIUM BODY AND ETCHING THE GERMANIUM TO REMOVE REACTION PRODUCTS OF THE ZINC AND THE GERMANIUM.
Claim 2
Independent Claim
58 words
THE METHOD OF PRODUCING A LOCALIZED INHOMOGENEITY IN GERMANIUM INCLUDING THE STEPS OF EXPOSING THE SURFACE OF A BODY OF GERMANIUM TO THE ACTION OF A GRANULE OF ZINC AT A TEMPERATURE IN THE RANGE 600 TO 800* CENTIGRADE, GRADUALLY COOLING THE GERMANIUM BODY AND ETCHING THE GERMANIUM TO REMOVE REACTION PRODUCTS OF THE ZINC AND THE GERMANIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |