Patent US2887367A successfully refreshed from Google Patents.
US2887367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resist etching
Assignee: Ford Motor Co
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Filing: 1956-11-13
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Granted: 1959-05-19
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Eisner Steve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:24
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/02; C23F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE PROCESS OF PRODUCING A PRECISION ETCHED PATTERN ON A METAL SURFACE WHICH COMPRISES COATING A SILK SCREEN WITH A SILICONE, PLACING THE SILK SCREEN OVER THE METAL TO BE ETCHED, SELECTIVELY DEPOSITING AN ACID RESISTANT RESIN ON A PORTION ONLY OF THE METAL SURFACE THROUGH SAID SILK SCREEN AND ETCHING THAT PORTION OF THE METAL SURFACE THAT IS UNPROTECTED BY THE RESIN WITH A STRONG ACID.
Claim 2
Dependent Claim
67 words
THE PROCESS OF PRODUCING A PRECISION ETCHED PATTERN ON A METAL SURFACE WHICH COMPRISES COATING A SILK SCREEN WITH A SILICONE, PLACING THE SILK SCREEN OVER THE METAL TO BE ETCHED, SELECTIVELY DEPOSITING AN ACID RESISTANT RESIN ON A PORTION ONLY OF THE METAL SURFACE THROUGH SAID SILK SCREEN AND ETCHING THAT PORTION OF THE METAL SURFACE THAT IS UNPROTECTED BY THE RESIN WITH A STRONG ACID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |