US2915844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shallow scintillating sign
Assignee: PRISM SIGNS Inc
•
Filing: 1956-11-01
•
Granted: 1959-12-08
•
Expires: 1976-11-01
Abstract
No abstract record available.
Inventors
- 👤 William E Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:33
CPC Classifications
G; G09; G09F; G09F13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB327563A
Cited
GB479722A
Cited
US2272945A
Cited
US2272947A
Cited
US2320884A
Cited
US2419216A
Cited
US2586231A
Cited
US2568494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |