US2882632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marker material and method
Assignee: Prismo Safety Corp
•
Filing: 1955-10-25
•
Granted: 1959-04-21
•
Expires: 1975-10-25
Abstract
No abstract record available.
Inventors
- 👤 Donald M Rockwell
- 👤 Armand E Keeley
- 👤 William D Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/16; G02; G02B; G02B5/00; G02B5/12; G02B5/126; G02B5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2422256A
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US2354048A
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US2294930A
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GB556935A
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US2411222A
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US2379702A
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US2432928A
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US2354049A
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US2383884A
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US2592882A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |