US3493482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of coal in electrodepositable compositions
Assignee: PPG Industries Inc
•
Filing: 1968-07-23
•
Granted: 1970-02-03
•
Expires: 1988-07-23
Abstract
No abstract record available.
Inventors
- 👤 James Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:00
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/448; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31717
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1995528A
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US2138938A
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GB450788A
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US2576362A
Cited
GB773779A
Cited
US3159558A
Cited
US3257304A
Cited
US3366563A
Cited
US3369983A
Cited
US3230162A
Cited
US3403088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |