US2537255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive electric device
Assignee: AT&T Inc
•
Filing: 1946-03-20
•
Granted: 1951-01-09
•
Expires: 1966-03-20
Abstract
No abstract record available.
Inventors
- 👤 Walter H Brattain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
H; H10; H10P; H10P95/00; H01; H01J; H01J40/00; H10F; H10F99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/12; Y10S148/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A LIGHT-SENSITIVE ELECTRIC DEVICE COMPRISING A SUPPORT, A BODY OF SOLIDIFIED FUSED PURIFIED SILICON ON SAID SUPPORT, A THIN FILM OF AMORPHOUS SILICON ON SAID BODY, AND ELECTRICAL CONTACTS CONTACTING RESPECTIVELY SAID BODY OF SILICON AND SAID THIN FILM OF SILICON AT POINTS ON THEIR SURFACES REMOTE FROM EACH OTHER.
Claim 2
Dependent Claim
50 words
A LIGHT-SENSITIVE ELECTRIC DEVICE COMPRISING A SUPPORT, A BODY OF SOLIDIFIED FUSED PURIFIED SILICON ON SAID SUPPORT, A THIN FILM OF AMORPHOUS SILICON ON SAID BODY, AND ELECTRICAL CONTACTS CONTACTING RESPECTIVELY SAID BODY OF SILICON AND SAID THIN FILM OF SILICON AT POINTS ON THEIR SURFACES REMOTE FROM EACH OTHER.
References Cited (Backward Citations)
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US553296A
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US836531A
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US876332A
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US1964322A
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US1998334A
Cited
US2061357A
Cited
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Cited
US2402662A
Cited
US2443542A
Cited
US2423125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |