US2838993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Exacta Bueromaschinen GmbH
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Filing: 1955-11-01
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Granted: 1958-06-17
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Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 Hinrichs Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:37
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/08; G06K7/082; G06K7/083; G06K7/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1608837A
Cited
US2278118A
Cited
US2258106A
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US2638842A
Cited
US2566972A
Cited
US2640647A
Cited
US2650024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |