US2656528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for indicating time-space lag and lead
Assignee: Individual
•
Filing: 1948-05-21
•
Granted: 1953-10-20
•
Expires: 1968-05-21
Abstract
No abstract record available.
Inventors
- 👤 Henry C Savino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:29
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/123; G09; G09B; G09B21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |