US2487242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timed reading device having a moving script sheet and angularly adjustable index
Assignee: Individual
•
Filing: 1945-02-05
•
Granted: 1949-11-08
•
Expires: 1965-02-05
Abstract
No abstract record available.
Inventors
- 👤 Carl M Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:32
CPC Classifications
B; B42; B42D; B42D19/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US281684A
Cited
US909798A
Cited
US961288A
Cited
US1236565A
Cited
US1346758A
Cited
US1488459A
Cited
US1569946A
Cited
US1965906A
Cited
US2188210A
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 |