US3512882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro photography system
Assignee: SLAUGHTER BYERS ICENHOUR AND JACKSON
•
Filing: 1965-12-17
•
Granted: 1970-05-19
•
Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel Earle Speers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
G; G03; G03G; G03G17/00; G03G15/00; G03G15/22; G03G15/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2409454A
Cited
US2549546A
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US2692948A
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US2707162A
Cited
US2676100A
Cited
US2758525A
Cited
US2891911A
Cited
US3234018A
Cited
US3187340A
Cited
US3281200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |