Patent US2840637A successfully refreshed from Google Patents.
US2840637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for converting telegraphic code into characters
Assignee: General Dynamics Corp
•
Filing: 1955-02-28
•
Granted: 1958-06-24
•
Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Mcnaney
- 👤 Richard R Tice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
H; H04; H04L; H04L17/00; H04L17/16; H04L17/30; G; G09; G09G; G09G1/00; G09G1/22; H04L15/00; H04L15/24; H04L15/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |