US789336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telegraphone.
Assignee: Individual
•
Filing: 1902-09-02
•
Granted: 1905-05-09
•
Expires: 1922-09-02
Abstract
No abstract record available.
Inventors
- 👤 Valdemar Poulsen
- 👤 Peder O Pedersen
- 👤 Carl Schou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:56
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43
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) | 1908-05-08 | 1908-11-07 | 1909-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-05-08 | 1912-11-07 | 1913-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-05-08 | 1916-11-07 | 1917-05-09 | $7700.00 | Window Closed / Lapsed |