US3449222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal coating process
Assignee: Henkel Corp
•
Filing: 1965-08-12
•
Granted: 1969-06-10
•
Expires: 1985-08-12
Abstract
No abstract record available.
Inventors
- 👤 Dennis B Freeman
- 👤 Peter Burden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:34
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/36; C23; C23C; C23C22/00; C23C22/82; C25D13/00; C25D13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1007069A
Cited
US1856261A
Cited
US2056399A
Cited
US2132438A
Cited
US2125387A
Cited
US2412543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |