Patent US3013892A successfully refreshed from Google Patents.
US3013892A
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Impact media for mechanical plating and method of using same
Assignee: 3M Co
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Filing: 1959-12-09
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Granted: 1961-12-19
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Expires: 1979-12-09
Abstract
No abstract record available.
Inventors
- 👤 John G Songas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:09
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/02; C23C24/04; C23C24/045
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
IN THE MECHANICAL PLATING OF METAL PLATING POWDERS ONTO ARTICLES HAVING INTRICATE GEOMETRICAL SURFACE AREAS TO BE PLATED SUCH AS SCREWS AND NUTS, A MECHANICAL PLATING IMPACT MEDIA COMPRISING A MIXTURE OF SPHERODIAL AND NON-SPHEROIDAL SHAPED VITREOUS PARTICLES, SAID NONSPHEROIDAL PARTICLES COMPRISING ABOUT 15% TO ABOUT 70% BY VOLUME OF THE MIXTURE AND BEING OF A SIZE RANGE OF
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |