US2487307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display apparatus
Assignee: Individual
•
Filing: 1946-05-03
•
Granted: 1949-11-08
•
Expires: 1966-05-03
Abstract
No abstract record available.
Inventors
- 👤 Cassidy Joseph Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:30
CPC Classifications
G; G09; G09F; G09F11/00; G09F11/23
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1003094A
Cited
US1031542A
Cited
US1646706A
Cited
US1842615A
Cited
US1900059A
Cited
GB504019A
Cited
US2165727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |