US3003268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign construction
Assignee: Individual
•
Filing: 1959-06-18
•
Granted: 1961-10-10
•
Expires: 1979-06-18
Abstract
No abstract record available.
Inventors
- 👤 Chan Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:15
CPC Classifications
G; G09; G09F; G09F11/00; G09F11/02; G09F11/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1362542A
Cited
US1806722A
Cited
US1058698A
Cited
US1077885A
Cited
US2839855A
Cited
US2887085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |