US3513320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article identification system detecting plurality of colors disposed on article
Assignee: MARKSTEMS Inc
•
Filing: 1966-10-31
•
Granted: 1970-05-19
•
Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Roger J Weldon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:22
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861; G06K7/10871; G06K7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2888570A
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US2899132A
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US3004702A
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US3207910A
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US3138783A
Cited
US3003389A
Cited
US3196393A
Cited
US3074634A
Cited
US3350545A
Cited
US3229102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |