US2430028A
Expired / Lapsed
US
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Translating device and method of making it
Assignee: AT&T Inc
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Filing: 1943-03-16
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Granted: 1947-11-04
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Expires: 1963-03-16
Abstract
No abstract record available.
Inventors
- 👤 William G Pfann
- 👤 Jack H Scaff
- 👤 Addison H White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:55
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/20; H10D64/23; C; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/10; C10L5/14; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; H10P; H10P95/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 0
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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) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |