Etching apparatus
Abstract
Abstract An etching apparatus is provided, in which articles, such as printed circuit boards and various other types of articles may be etched, within a chamber, during their movement through the chamber of the etching apparatus. Disposed beneath the chamber is a reservoir or sump for collecting exchange, or treatment fluid that is sprayed onto the articles as they are being conveyed through the chamber, with the sump or reservoir extending laterally of the portion of the apparatus directly beneath the chamber, for ease of top access to the reservoir, through a removable access opening therein, for ready access to a removable and replaceable filter disposed within the reservoir, near the inlet to an etchant pump also disposed therein. All of the etchant plumbing is contained within the apparatus, for internal collection of the etchant in the event of leakage or the like.
Inventors
- 👤 D Goffredo
- 👤 C Shakley
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |