Patent US2879196A successfully refreshed from Google Patents.
US2879196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for metal spray molds
Assignee: Zenith Plastics Co
•
Filing: 1953-05-22
•
Granted: 1959-03-24
•
Expires: 1973-05-22
Abstract
No abstract record available.
Inventors
- 👤 Brucker Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:20
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; B22D; B22D18/00; B22D18/06; Y; Y10; Y10S; Y10S425/00; Y10S425/029; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE METHOD OF MAKING A MOLD COMPRISING FORMING A FIRST LAYER OF POROUS METAL BY SPRAYING SAID METAL ON A FORM, APPLYING A SECOND LAYER OF NON-METAL TO ONE FACE OF SAID FIRST LAYER, AND APPLYING A THIRD LAYER OF FIRM MATERIAL OVER SAID SECOND LAYER AND SECURING THE SAME TO SAID FIRST LAYER OUTSIDE THE BOUNDARIES OF SAID SECOND LAYER, AND FORMING A SPACE BETWEEN SAID FIRST AND THIRD LAYERS BY WITHDRAWING SAID SECOND LAYER.
Claim 2
Independent Claim
76 words
THE METHOD OF MAKING A MOLD COMPRISING FORMING A FIRST LAYER OF POROUS METAL BY SPRAYING SAID METAL ON A FORM, APPLYING A SECOND LAYER OF NON-METAL TO ONE FACE OF SAID FIRST LAYER, AND APPLYING A THIRD LAYER OF FIRM MATERIAL OVER SAID SECOND LAYER AND SECURING THE SAME TO SAID FIRST LAYER OUTSIDE THE BOUNDARIES OF SAID SECOND LAYER, AND FORMING A SPACE BETWEEN SAID FIRST AND THIRD LAYERS BY WITHDRAWING SAID SECOND LAYER.
References Cited (Backward Citations)
US1592536A
Cited
US1929535A
Cited
US2189154A
Cited
US2264146A
Cited
US2280865A
Cited
US2295858A
Cited
US2370322A
Cited
US2392108A
Cited
US2376805A
Cited
US2420359A
Cited
US2447620A
Cited
US2664593A
Cited
US2642390A
Cited
US2755216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |