US836339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetizable body for the magnetic record of speech, &c.
Assignee: AMERICAN TELEGRAPHONE Co
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Filing: 1901-06-21
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Granted: 1906-11-20
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Expires: 1921-06-21
Abstract
No abstract record available.
Inventors
- 👤 Peder Oluf Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:35
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3033; Y; Y10; Y10S; Y10S29/00; Y10S29/028; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/928; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12778; Y10T428/12861
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) | 1909-11-19 | 1910-05-21 | 1910-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-11-19 | 1914-05-21 | 1914-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-11-19 | 1918-05-21 | 1918-11-20 | $7700.00 | Window Closed / Lapsed |