US2525552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture projection equipment
Assignee: Individual
•
Filing: 1947-12-24
•
Granted: 1950-10-10
•
Expires: 1967-12-24
Abstract
No abstract record available.
Inventors
- 👤 Kingston Arthur William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/30; G03B21/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1447403A
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US1551259A
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US1934582A
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US1988522A
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US2064368A
Cited
US2230573A
Cited
US2265992A
Cited
US2322023A
Cited
US2424339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |