Patent US245628A successfully refreshed from Google Patents.
Patent US2903513A successfully refreshed from Google Patents.
US2903513A
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US
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Storage and switching apparatus for automatic telegraph signalling systems
Assignee: RCA Corp
•
Filing: 1953-09-14
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Granted: 1959-09-08
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Expires: 1973-09-14
Abstract
No abstract record available.
Inventors
- 👤 James C Phelps
- 👤 Arthur E Canfora
- 👤 Liguori Anthony
- 👤 Jr Dominick Mandato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/12; H04L1/16; H04L1/18
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |