US3447950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of encapsulated powders
Assignee: Valley Metallurgical Processing Co Inc
•
Filing: 1966-02-03
•
Granted: 1969-06-03
•
Expires: 1986-02-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Evans
- 👤 Norman S Gesick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:59
CPC Classifications
C; C23; C23C; C23C26/00; C23C26/02; B; B01; B01J; B01J13/00; B01J13/02; B01J13/04; B22; B22F; B22F1/00; B22F1/16; B22F1/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1710747A
Cited
US2042635A
Cited
US2294895A
Cited
US2422439A
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US2706163A
Cited
US2993469A
Cited
US3110626A
Cited
US3247014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |