US1105629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-party key.
Assignee: AT&T Inc
•
Filing: 1910-06-11
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Granted: 1914-08-04
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Expires: 1930-06-11
Abstract
No abstract record available.
Inventors
- 👤 Amos E Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
H; H04; H04Q; H04Q3/00; H01; H01H; H01H13/00; H01H13/70; H01H9/00; H01H9/0066
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) | 1917-08-03 | 1918-02-02 | 1918-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-08-03 | 1922-02-02 | 1922-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-08-03 | 1926-02-02 | 1926-08-04 | $7700.00 | Window Closed / Lapsed |