US2534129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry granular mix
Assignee: Saint Gobain Abrasives Inc
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Filing: 1949-06-28
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Granted: 1950-12-12
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Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Wallace L Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:05
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/628; C04B35/62894; C04B35/62605; C04B35/62645; C04B35/62665; C04B35/62802; C04B35/62828; C04B35/62839; C04B35/63; C04B35/632; C04B35/634; C04B35/63448; C04B35/63488; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3217; C04B2235/38; C04B2235/3817; C04B2235/3826; C04B2235/42; C04B2235/422; C04B2235/424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A DRY GRANULAR MIX COMPRISING PARTICLES OF HARD REFRACTORY MATERIAL EACH COATED WITH A CONSIDERABLE NUMBER OF FINE PARTICLES OF VITRIFLABLE CERAMIC BOND MIXED WITH WAX, THE BOND AND WAX FORMING AN ENVELOPE WHICH SURROUNDS A PARTICLE EACH PARTICLE OF REFRACTORY MATERIAL HAVING SUCH ENVELOPE, AND A COATING OF AMORPHOUS CARBON POWDER ON EACH SUCH ENVELOPE.
Claim 2
Dependent Claim
56 words
A DRY GRANULAR MIX COMPRISING PARTICLES OF HARD REFRACTORY MATERIAL EACH COATED WITH A CONSIDERABLE NUMBER OF FINE PARTICLES OF VITRIFLABLE CERAMIC BOND MIXED WITH WAX, THE BOND AND WAX FORMING AN ENVELOPE WHICH SURROUNDS A PARTICLE EACH PARTICLE OF REFRACTORY MATERIAL HAVING SUCH ENVELOPE, AND A COATING OF AMORPHOUS CARBON POWDER ON EACH SUCH ENVELOPE.
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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |