US3383347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy emulsion coatings
Assignee: American Pipe and Construction Co
•
Filing: 1964-09-21
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Granted: 1968-05-14
•
Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Richard R Pettit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:06
CPC Classifications
C; C09; C09D; C09D163/00; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621; C08G59/623; C08L; C08L63/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB886767A
Cited
US3050493A
Cited
US3168488A
Cited
FR1315282A
Cited
US3238165A
Cited
US3275587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |