US2601953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making chemically active graphitic carbon powder
Assignee: General Electric Co
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Filing: 1949-06-30
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Granted: 1952-07-01
•
Expires: 1969-06-30
Abstract
No abstract record available.
Inventors
- 👤 Robert H Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:39
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/30; C01B32/312; C01B32/318
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A METHOD FOR PRODUCING CHEMICALLY ACTIVE ULTRA-FINE SIZED GRAPHITE PARTICLES COMPRISING THE STEPS OF EVACUATING THE SPACE ENCLOSED BY THE AIR TIGHT HOUSING IN WHICH THE COMMINUTION PROCESS TAKES PLACE, AND THEN COMMINUTING THE GRAPHITE
Claim 2
Independent Claim
35 words
A METHOD FOR PRODUCING CHEMICALLY ACTIVE ULTRA-FINE SIZED GRAPHITE PARTICLES COMPRISING THE STEPS OF EVACUATING THE SPACE ENCLOSED BY THE AIR TIGHT HOUSING IN WHICH THE COMMINUTION PROCESS TAKES PLACE, AND THEN COMMINUTING THE GRAPHITE
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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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |