US2716155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Teleprinting apparatus
Assignee: National Research Development Corp UK
•
Filing: 1952-06-20
•
Granted: 1955-08-23
•
Expires: 1972-06-20
Abstract
No abstract record available.
Inventors
- 👤 Smith Ernest William
- 👤 Hillyard Harold Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:38
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/02; H04L12/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1010413A
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US1346493A
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US1972289A
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US1815786A
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US2192242A
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US1971686A
Cited
US2357297A
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US2339293A
Cited
US2613265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |