US3041600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character projection apparatus
Assignee: GUMPERTZ
•
Filing: 1957-01-31
•
Granted: 1962-06-26
•
Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Donald G Gumpertz
- 👤 John E Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/40; G09F9/405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1350539A
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US1072426A
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GB191114302A
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US1223459A
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US1530621A
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US1589370A
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US1608548A
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US2034603A
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US2113829A
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GB741246A
Cited
US2787785A
Cited
US2931027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |