US3227166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Etching machine
Assignee: Tasope Ltd
•
Filing: 1962-09-12
•
Granted: 1966-01-04
•
Expires: 1982-09-12
Abstract
No abstract record available.
Inventors
- 👤 Charles S Martz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:27
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
IN AN ETCHING MACHINE; (A) A TANK HOLDING ETCHANT, (B) A ROD HOLDING A WORKPIECE SUBMERGED IN SAID ETCHANT, (C) MEANS UNIVERSALLY MOUNTING SAID ROD BETWEEN ITS ENDS, (D) MEANS RELEASING BUBBLES IN SAID ETCHANT BELOW SAID WORKPIECE, AND (E) MEANS SWINGING SAID ROD ABOUT ITS MOUNTING TO IMPART A WOBBLE MOTION TO THE WORKPIECE SO THAT THE DIRECTION OF BUBBLE FLOW UP ALONG THE LOWER FACE OF THE SUBMERGED WORKPIECE IS CONSTANTLY CHANGING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |