US3472678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface treatment for polystyrene which is to be electroless plated and compositions therefor
Assignee: HEXAGON LAB Inc
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Filing: 1967-05-03
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Granted: 1969-10-14
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Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Paul F Bruins
- 👤 Harold R Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:54
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; C23C18/26; C23C18/2006; C23C18/2046; C23C18/2073; C23C18/2086; C23C18/28; C23C18/285; C23C18/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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 |