US2619632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse communication system
Assignee: Stromberg Carlson Corp
•
Filing: 1948-04-23
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Granted: 1952-11-25
•
Expires: 1968-04-23
Abstract
No abstract record available.
Inventors
- 👤 James A Krumhansl
- 👤 Glenn H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:44
CPC Classifications
H; H04; H04K; H04K1/00; H04K1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23288E
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US2266401A
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US2289564A
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US2444890A
Cited
US2448814A
Cited
US2449467A
Cited
US2466230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |