US3005244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of shell molds
Assignee: Howmet Turbine Components Corp
•
Filing: 1958-06-09
•
Granted: 1961-10-24
•
Expires: 1978-06-09
Abstract
No abstract record available.
Inventors
- 👤 Reiner W Erdle
- 👤 Roy C Feagin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:25
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/6303; C04B35/6316; B; B22; B22C; B22C1/00; B22C1/16; B22C1/167; B22C9/00; B22C9/02; B22C9/04; C04B33/00; C04B33/02; C04B33/13; C04B33/1305; C04B33/131; C04B33/1315; C04B33/16; C04B35/01; C04B35/48; C04B35/481; C04B35/632; C04B35/634; C04B35/63404; C04B35/63416; C04B35/636; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3231; C04B2235/3244; C04B2235/3248; C04B2235/34; C04B2235/3418; C04B2235/349; C04B2235/44; C04B2235/447; C04B2235/70; C04B2235/96; C04B2235/9669; C04B2235/9676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A COMPOSITION FOR MAKING A HIGH-STRENGTH REFRACTORY SHELL MOLD BY COATING ON AN EXPENDABLE PATTERN, SAID COMPOSITION BEING A FLUID SLURRY CONSISTING ESSENTIALLY OF FROM 1/4 TO 15 PARTS BY WEIGHT OF FINELY-DIVIDED SOLID REFRACTORY MATERIAL SUSPENDED IN 1 PART BY WEIGHT OF AN AQUEOUS SOL, SAID SOL CONTAINING (ON A DRY BASIS) FROM 60% TO 80% BY WEIGHT OF COLLOIDALLY DISPERSED SILICA AND FROM 8% TO 35% BY WEIGHT OF A RESINUOUS POLYMER.
Claim 2
Dependent Claim
74 words
A COMPOSITION FOR MAKING A HIGH-STRENGTH REFRACTORY SHELL MOLD BY COATING ON AN EXPENDABLE PATTERN, SAID COMPOSITION BEING A FLUID SLURRY CONSISTING ESSENTIALLY OF FROM 1/4 TO 15 PARTS BY WEIGHT OF FINELY-DIVIDED SOLID REFRACTORY MATERIAL SUSPENDED IN 1 PART BY WEIGHT OF AN AQUEOUS SOL, SAID SOL CONTAINING (ON A DRY BASIS) FROM 60% TO 80% BY WEIGHT OF COLLOIDALLY DISPERSED SILICA AND FROM 8% TO 35% BY WEIGHT OF A RESINUOUS POLYMER.
References Cited (Backward Citations)
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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) | 1964-10-23 | 1965-04-24 | 1965-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-23 | 1969-04-24 | 1969-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-23 | 1973-04-24 | 1973-10-24 | $7700.00 | Window Closed / Lapsed |