Patent US2963220A successfully refreshed from Google Patents.
US2963220A
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US
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Assignee: Government of Netherlands
•
Filing: 1955-06-02
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Granted: 1960-12-06
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Expires: 1975-06-02
Abstract
No abstract record available.
Inventors
- 👤 Kosten Leendert
- 👤 Toorn Adrianus Johannes Va Der
- 👤 Oberman Roelof Maarten Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:50
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/04; G06V; G06V30/00; G06V30/10; G06V30/22; G06V30/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1117184A
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US1165663A
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US1887160A
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US2240545A
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US2261542A
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US2211320A
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US2294679A
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US2308928A
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US2288073A
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US2508953A
Cited
US2557022A
Cited
GB686289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |