US2772600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image superimposition apparatus
Assignee: Individual
•
Filing: 1953-08-03
•
Granted: 1956-12-04
•
Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/08; G03B15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1636834A
Cited
GB286329A
Cited
US1755105A
Cited
US1950166A
Cited
US2339780A
Cited
US2336508A
Cited
US2547187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |