US2964997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizon camera objective lens system
Assignee: Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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Filing: 1957-06-24
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Granted: 1960-12-20
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Expires: 1977-06-24
Abstract
No abstract record available.
Inventors
- 👤 Abraham C S Van Heel
- 👤 Gerardus J Beernink
- 👤 Hendrik J Raterink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:52
CPC Classifications
G; G02; G02B; G02B13/00; G02B13/06; G02B13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE246761C
Cited
GB190815188A
Cited
GB258755A
Cited
US2410842A
Cited
US2485345A
Cited
US2638033A
Cited
US2794379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |