US2487102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Code communication system
Assignee: SPX Technologies Inc
•
Filing: 1947-05-02
•
Granted: 1949-11-08
•
Expires: 1967-05-02
Abstract
No abstract record available.
Inventors
- 👤 Nelson B Coley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:45
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/20; G08G5/26; B; B61; B61L; B61L7/00; B61L7/06; B61L7/08; B61L7/088; G08G5/22
Claims Analysis
Total Claims: 0
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US2309743A
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US2334574A
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US2399738A
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US2424900A
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US2420693A
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US2395133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |