US2837294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prompting apparatus
Assignee: TELEPROMPTER WEST COAST Corp
•
Filing: 1955-02-17
•
Granted: 1958-06-03
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Iii John Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
A; A63; A63J; A63J5/00; A63J5/10; B; B42; B42D; B42D19/00; B42D19/005; G; G09; G09F; G09F11/00; G09F11/24; G09F11/29
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US207834A
Cited
US1247981A
Cited
US1571610A
Cited
US1841950A
Cited
US2398226A
Cited
US2635373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |