Patent US3409510A successfully refreshed from Google Patents.
Patent US2938425A successfully refreshed from Google Patents.
US2938425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection of stereoscopic pictures to give a three dimensional effect
Assignee: Individual
•
Filing: 1953-05-26
•
Granted: 1960-05-31
•
Expires: 1973-05-26
Abstract
No abstract record available.
Inventors
- 👤 Lopez-Henriquez Miguel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:58
CPC Classifications
G; G03; G03B; G03B35/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR388157A
Cited
US1284673A
Cited
US1783399A
Cited
US1673793A
Cited
US1714849A
Cited
GB230120A
Cited
US1556566A
Cited
GB259341A
Cited
US1939343A
Cited
US1806190A
Cited
GB444839A
Cited
US2331941A
Cited
US2416919A
Cited
GB592375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |