US2464837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio teletype system
Assignee: Individual
•
Filing: 1946-05-02
•
Granted: 1949-03-22
•
Expires: 1966-05-02
Abstract
No abstract record available.
Inventors
- 👤 Florian J Werthmann
- 👤 Gleneth F Collar
- 👤 Reinhold F Blomquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:20
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/02; H04L5/06; H04L5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US727060A
Cited
US1631976A
Cited
US1661963A
Cited
US1886263A
Cited
US2301373A
Cited
US2404565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |