US2623165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulated light communication system
Assignee: Individual
•
Filing: 1948-01-07
•
Granted: 1952-12-23
•
Expires: 1968-01-07
Abstract
No abstract record available.
Inventors
- 👤 Mueller Hans
- 👤 Robert H Rines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/02; G02B27/00; G02B27/28; G02F; G02F1/00; G02F1/01; G02F1/0128; G02F1/0131; G02F1/11; H; H04; H04B; H04B10/00; H04B10/50; H04B10/516; H04B10/532
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |