US990485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telegraph-transmitter.
Assignee: AMERICAN TRANSMITTER AND MANUFACTURING Co
•
Filing: 1910-05-17
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Granted: 1911-04-25
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Expires: 1930-05-17
Abstract
No abstract record available.
Inventors
- 👤 Benjamin P Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:44
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/26; H; H04; H04L; H04L15/00; H04L15/04; H04L15/16
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) | 1914-04-24 | 1914-10-24 | 1915-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-04-24 | 1918-10-24 | 1919-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-04-24 | 1922-10-24 | 1923-04-25 | $7700.00 | Window Closed / Lapsed |