Patent US2773339A successfully refreshed from Google Patents.
US2773339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the surface treatment of light alloy components, more particularly for the abrasive blast treatment of light alloy castings
Assignee: Georg Fischer AG
•
Filing: 1952-07-23
•
Granted: 1956-12-11
•
Expires: 1972-07-23
Abstract
No abstract record available.
Inventors
- 👤 Bischoff Fritz Nikolaus
- 👤 Haberlin Hans Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:52
CPC Classifications
B; B24; B24C; B24C11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE PROCESS OF BLAST-TREATING SHAPES, CASTINGS AND THE LIKE; THE STEP OF DIRECTING AGAINST THE SURFACE OF THE CASTING MADE OF LIGHT WEIGHT METAL WITH AN ATOMIC WEIGHT RANGING FROM 24 TO 27 SHOTS, GRITS, SLUGS AND LIKE PARTICLES OBTAINED FROM AN ALLOY OF LIGHT WEIGHT METAL CONSISTING PREDOMINATLY OF ALUMINUM IN AN AMOUNT NOT LESS THAN APPROXIMATELY 80% OF THE TOTAL WEIGHT OF SAID ALLOY.
Claim 2
Dependent Claim
67 words
IN THE PROCESS OF BLAST-TREATING SHAPES, CASTINGS AND THE LIKE; THE STEP OF DIRECTING AGAINST THE SURFACE OF THE CASTING MADE OF LIGHT WEIGHT METAL WITH AN ATOMIC WEIGHT RANGING FROM 24 TO 27 SHOTS, GRITS, SLUGS AND LIKE PARTICLES OBTAINED FROM AN ALLOY OF LIGHT WEIGHT METAL CONSISTING PREDOMINATLY OF ALUMINUM IN AN AMOUNT NOT LESS THAN APPROXIMATELY 80% OF THE TOTAL WEIGHT OF SAID ALLOY.
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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |