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US3021815A
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Apparatus for marking articles with a liquid
Assignee: AT&T Inc
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Filing: 1960-11-17
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Granted: 1962-02-20
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Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Burke
- 👤 Jr John F Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
B; B41; B41F; B41F17/00; B41F17/08; B41F17/10; Y; Y10; Y10S; Y10S118/00; Y10S118/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2865323A
Cited
USRE24923E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |