Patent US3451336A successfully refreshed from Google Patents.
US3451336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master making and duplicating machine
Assignee: AB Dick Co
•
Filing: 1966-01-13
•
Granted: 1969-06-24
•
Expires: 1986-01-13
Abstract
No abstract record available.
Inventors
- 👤 Albert E Mignone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:13
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/28; B; B41; B41L; B41L19/00; B41M; B41M1/00; B41M1/06; G03G13/00; G03G13/26; G03G13/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2908220A
Cited
US3063859A
Cited
US2885955A
Cited
US2993787A
Cited
US2919171A
Cited
US2952536A
Cited
US3056346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |