US2690697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical-mechanical typewriter projection apparatus
Assignee: Individual
•
Filing: 1953-02-04
•
Granted: 1954-10-05
•
Expires: 1973-02-04
Abstract
No abstract record available.
Inventors
- 👤 John L Rocca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:20
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/44; B41J3/46
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1032160A
Cited
US1081922A
Cited
US1624669A
Cited
US1889575A
Cited
US1918468A
Cited
US1894684A
Cited
US2108053A
Cited
US2027026A
Cited
US2067835A
Cited
US2174339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |