US2795058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tachistoscope
Assignee: Individual
•
Filing: 1953-01-23
•
Granted: 1957-06-11
•
Expires: 1973-01-23
Abstract
No abstract record available.
Inventors
- 👤 Milam S Kavanaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:04
CPC Classifications
G; G09; G09B; G09B17/00; G09B17/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US346656A
Cited
US1385623A
Cited
GB177489A
Cited
US1847815A
Cited
US2266798A
Cited
US2628435A
Cited
CH271394A
Cited
US2647329A
Cited
US2723466A
Cited
US2724911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |