US835860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microtelephone.
Assignee: ELEKTRO-MILITAERA AB
•
Filing: 1905-02-28
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Granted: 1906-11-13
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Expires: 1925-02-28
Abstract
No abstract record available.
Inventors
- 👤 Arvid Andersson Lind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:54
CPC Classifications
H; H04; H04R; H04R11/00
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) | 1909-11-12 | 1910-05-14 | 1910-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-11-12 | 1914-05-14 | 1914-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-11-12 | 1918-05-14 | 1918-11-13 | $7700.00 | Window Closed / Lapsed |