US2843004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying indicia to transparencies and method of and apparatus for projecting images of said indexed transparencies upon a screen in reflected light
Assignee: Individual
•
Filing: 1953-11-27
•
Granted: 1958-07-15
•
Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Pajes Wolf Szmul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:42
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US700447A
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US1294172A
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US1198600A
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US1564291A
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US1659176A
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US1724572A
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FR709193A
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US2098311A
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US2211376A
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US2489835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |