Patent US3385774A successfully refreshed from Google Patents.
US3385774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means of anodizing
Assignee: Alcoa Corp
•
Filing: 1964-03-16
•
Granted: 1968-05-28
•
Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 William A Thompson
- 👤 John H Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:11
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/005; C25D17/00; C25D17/16; C25D17/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US917795A
Cited
US944650A
Cited
US1019969A
Cited
GB176411A
Cited
DE426455C
Cited
FR710753A
Cited
DE565864C
Cited
US2016446A
Cited
US2331071A
Cited
US2370463A
Cited
US2721837A
Cited
US2828255A
Cited
DE1003003B
Cited
US3200052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |