US3484304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for cleaning and coating metal surfaces
Assignee: Henkel Corp
•
Filing: 1966-10-11
•
Granted: 1969-12-16
•
Expires: 1986-10-11
Abstract
No abstract record available.
Inventors
- 👤 James R Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:13
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2067007A
Cited
GB566094A
Cited
US2856322A
Cited
US2891884A
Cited
US2987428A
Cited
US3060066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |