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US3531353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating wood
Assignee: PPG Industries Inc
•
Filing: 1966-06-29
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Granted: 1970-09-29
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Rowland S Hartzell
- 👤 Gene Gerek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:49
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |