US2575268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing telegraph system
Assignee: Individual
•
Filing: 1949-05-23
•
Granted: 1951-11-13
•
Expires: 1969-05-23
Abstract
No abstract record available.
Inventors
- 👤 Griffith Ronald George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:53
CPC Classifications
H; H04; H04L; H04L5/00; H04L5/22; H04L5/24; H04L5/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20330E
Cited
US1880906A
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US2095144A
Cited
US2209883A
Cited
US2399734A
Cited
US2457974A
Cited
US2404339A
Cited
US2498695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |