US2952528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic transistor bar etching
Assignee: Texas Instruments Inc
•
Filing: 1956-10-11
•
Granted: 1960-09-13
•
Expires: 1976-10-11
Abstract
No abstract record available.
Inventors
- 👤 Cornelison Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:13
CPC Classifications
C; C23; C23F; C23F1/00; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
METHOD OF ETCHING COMPRISING INTRODUCING AN ARTICLE TO BE ETCHED INTO AN ETCHING MEDIUM SUPPORTED ON AN IMMISCIBLE INERT MEDIUM, AT THE ADJACENT INTERFACE OF THE TWO MEDIA, SUPPORTING SAID ARTICLE IN SAID ETCHING MEDIUM, RELEASING SAID ARTICLE RESPONSIVE TO A PREDETERMINED RE-
Claim 2
Dependent Claim
43 words
METHOD OF ETCHING COMPRISING INTRODUCING AN ARTICLE TO BE ETCHED INTO AN ETCHING MEDIUM SUPPORTED ON AN IMMISCIBLE INERT MEDIUM, AT THE ADJACENT INTERFACE OF THE TWO MEDIA, SUPPORTING SAID ARTICLE IN SAID ETCHING MEDIUM, RELEASING SAID ARTICLE RESPONSIVE TO A PREDETERMINED RE-
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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |