Patent US2754496A successfully refreshed from Google Patents.
US2754496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identification coder and decoder
Assignee: Individual
•
Filing: 1951-04-23
•
Granted: 1956-07-10
•
Expires: 1971-04-23
Abstract
No abstract record available.
Inventors
- 👤 Robert C Embry
- 👤 James S Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:25
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/08; G06K7/082; G06K7/083; G06K7/084
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2224646A
Cited
US2258106A
Cited
US2247905A
Cited
US2275609A
Cited
US2335277A
Cited
US2427383A
Cited
US2530029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |