US2826168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for making electrostatic prints
Assignee: Grant Photo Products Inc
•
Filing: 1956-04-16
•
Granted: 1958-03-11
•
Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Garnet Peter Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09; G03G15/082; G03G15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US126097A
Cited
US835883A
Cited
US2221776A
Cited
US2297691A
Cited
US2624652A
Cited
US2626865A
Cited
US2701765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |