US3067666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing apparatus for overhead projection slides
Assignee: Individual
•
Filing: 1959-03-03
•
Granted: 1962-12-11
•
Expires: 1979-03-03
Abstract
No abstract record available.
Inventors
- 👤 Joe W Coffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/08; G03B27/00; G03B27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US780590A
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US2163776A
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US2153159A
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US2249228A
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US2301239A
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US2301675A
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US2336663A
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US2399975A
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US2365225A
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US2498417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |