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Patent US1139226A successfully refreshed from Google Patents.
US1139226A
Expired / Lapsed
US
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Radiotelegraphy.
Assignee: AMALGAMATED RADIO-TELEGRAPH COMPANY Ltd
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Filing: 1908-01-09
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Granted: 1915-05-11
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Expires: 1928-01-09
Abstract
No abstract record available.
Inventors
- 👤 Edward Raymond-Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:45
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/10
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) | 1918-05-10 | 1918-11-09 | 1919-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-05-10 | 1922-11-09 | 1923-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-05-10 | 1926-11-09 | 1927-05-11 | $7700.00 | Window Closed / Lapsed |