US3083424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing coated die castings
Assignee: NL Industries Inc
•
Filing: 1959-05-07
•
Granted: 1963-04-02
•
Expires: 1979-05-07
Abstract
No abstract record available.
Inventors
- 👤 Bauer Alfred Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:51
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/0009; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T29/49984; Y10T428/00; Y10T428/12; Y10T428/12472; Y10T428/12493; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE METHOD OF PRODUCING A DIE CASTING HAVING A TAPER-FREE CYLINDRICAL INTERIOR SURFACE OF A METAL HARDER AND OF HIGHER MELTING POINT THAN THE BODY OF THE CASTING
Claim 2
Independent Claim
28 words
THE METHOD OF PRODUCING A DIE CASTING HAVING A TAPER-FREE CYLINDRICAL INTERIOR SURFACE OF A METAL HARDER AND OF HIGHER MELTING POINT THAN THE BODY OF THE CASTING
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |