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US1410793A
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Crystal detector for wireless telegraphy
Assignee: Individual
•
Filing: 1920-11-09
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Granted: 1922-03-28
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Expires: 1940-11-09
Abstract
No abstract record available.
Inventors
- 👤 Bonnefont Antoine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:22
CPC Classifications
H; H10; H10D; H10D99/00; H10D64/00; H10D64/20; H10D64/23; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
Claims Analysis
Total Claims: 0
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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) | 1925-03-27 | 1925-09-26 | 1926-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-03-27 | 1929-09-26 | 1930-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-03-27 | 1933-09-26 | 1934-03-28 | $7700.00 | Window Closed / Lapsed |