US3463289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data reading system
Assignee: Individual
•
Filing: 1967-10-10
•
Granted: 1969-08-26
•
Expires: 1987-10-10
Abstract
No abstract record available.
Inventors
- 👤 David C Prince
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:45
CPC Classifications
B; B41; B41J; B41J3/00; B41J3/44; B41J3/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2114294A
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US2784392A
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US2791310A
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US2788879A
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US2811235A
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US2994428A
Cited
US3040323A
Cited
US3141404A
Cited
US3097745A
Cited
US3294956A
Cited
US3309711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |