Patent US3473111A successfully refreshed from Google Patents.
US3473111A
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Thin metal marking and method for detecting the same
Assignee: Government of Netherlands
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Filing: 1966-04-07
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Granted: 1969-10-14
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Expires: 1986-04-07
Abstract
No abstract record available.
Inventors
- 👤 Carolus Pieter Leersnijder
- 👤 Garbriel Zwy Lifschitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:38
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/08; G06K7/082; G06K7/083; G06K7/085; B; B07; B07C; B07C3/00; B07C3/10; B07C3/12; G01; G01N; G01N22/00; G06K1/00; G06K1/12; Y; Y10; Y10S; Y10S209/00; Y10S209/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA536687A
Cited
US2774060A
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US2933677A
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GB858583A
Cited
US3000498A
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US3136424A
Cited
US3077858A
Cited
US3205485A
Cited
US3315805A
Cited
US3309711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |