US3016822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moistening device for duplicating machines
Assignee: Individual
•
Filing: 1959-09-17
•
Granted: 1962-01-16
•
Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Ritzerfeld Wilhelm
- 👤 Ritzerfeld Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:46
CPC Classifications
B; B41; B41L; B41L7/00; B41L7/02; B41L7/08; B41L11/00; B41P; B41P2700/00; B41P2700/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2070684A
Cited
US2088175A
Cited
US2088346A
Cited
US2061526A
Cited
US2868117A
Cited
US2787211A
Cited
US2787212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |