US2731747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector display device
Assignee: R R KELLOGG ADVERTISING SERVIC
•
Filing: 1951-07-19
•
Granted: 1956-01-24
•
Expires: 1971-07-19
Abstract
No abstract record available.
Inventors
- 👤 Hazelroth Kenneth Marshall
- 👤 Rudolf R Diesen
- 👤 James O Melton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:36
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US718496A
Cited
US888569A
Cited
US1068875A
Cited
US1816524A
Cited
US1807966A
Cited
US1895773A
Cited
US2041135A
Cited
US2288956A
Cited
US2383941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |