US3510541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified amide interpolymer coating compositions
Assignee: PPG Industries Inc
•
Filing: 1967-09-21
•
Granted: 1970-05-05
•
Expires: 1987-09-21
Abstract
No abstract record available.
Inventors
- 👤 Erwin J Kapalko
- 👤 Richard A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:45
CPC Classifications
C; C09; C09D; C09D157/00; C09D157/04; C09D157/06; C09D157/12; C08; C08L; C08L61/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2984588A
Cited
US2890192A
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US3117693A
Cited
US3255147A
Cited
US3291856A
Cited
US3291770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |