US2809448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated globe
Assignee: COLUMBUS VERLAG PAUL OESTERGAA
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Filing: 1953-04-28
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Granted: 1957-10-15
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Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Oestergaard Paul
- 👤 Villinger Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:11
CPC Classifications
G; G09; G09B; G09B27/00; G09B27/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880202A
Cited
US1881417A
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US2355304A
Cited
US2379468A
Cited
US2513465A
Cited
US2515401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |