Patent US3438800A successfully refreshed from Google Patents.
US3438800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic enamel coating process
Assignee: BASF Corp
•
Filing: 1965-10-13
•
Granted: 1969-04-15
•
Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:25
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; B; B05; B05D; B05D3/00; B05D3/02; B05D3/0209; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C09D157/00; C09D157/04; B05D2202/00; B05D3/0254; B05D3/12; C08; C08L; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2530738A
Cited
US3082184A
Cited
US3198850A
Cited
US3105826A
Cited
US3065195A
Cited
US3098835A
Cited
US3069291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |