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Patent US2619932A successfully refreshed from Google Patents.
US2619932A
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Identifying marker using dichromatic material
Assignee: Motorola Solutions Inc
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Filing: 1950-06-16
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Granted: 1952-12-02
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Expires: 1970-06-16
Abstract
No abstract record available.
Inventors
- 👤 Franklin C Brewster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:23
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/02; H03J1/04; H03J1/044; Y; Y10; Y10S; Y10S116/00; Y10S116/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1464579A
Cited
US1929668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |