US3647645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for selective anodizing of perforated panels
Assignee: Rohr Inc
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Filing: 1969-11-14
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Granted: 1972-03-07
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Expires: 1989-11-14
Abstract
Abstract A METHOD FOR ANODIZING ONLY A SELECTED SIDE, EDGES AND THE INTERIORS OF PERFORATIONS OF A PERFORATED PANEL, IN WHICH A PRESSURE SENSITIVE TAPE IS APPLIED TO THE SELECTED SIDE OF THE PANEL AND OVER THE PERFORATIONS. A FILLER IS PLACED IN THE PERFORATIONS FROM THE OPPOSITE SIDE OF THE PANEL OVER WHICH A MASKANT IS APPLIED. THE TAPE IS THEN REMOVED AND THE PANEL IS TAPPED AND RINSED TO REMOVE THE FILLER, AFTER WHICH THE MASKED PANEL IS ANODIZED. THE MASKANT IS THEN REMOVED FROM THE PANEL.
Inventors
- 👤 Gilberto Carrillo
- 👤 William D Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:54
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |