US2770898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card holder
Assignee: HOPP PRESS Inc
•
Filing: 1952-02-09
•
Granted: 1956-11-20
•
Expires: 1972-02-09
Abstract
No abstract record available.
Inventors
- 👤 Lutz Harry Henrik
- 👤 Greenberger William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:53
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/18; G09F3/20; G09F3/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1979005A
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US1502137A
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US1680998A
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US1662813A
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US1826671A
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US1754851A
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US1797114A
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US2027086A
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US2320463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |