US2995471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating graphite product
Assignee: Individual
•
Filing: 1958-12-31
•
Granted: 1961-08-08
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 David H Gurinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:00
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; Y; Y10; Y10T; Y10T428/00; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A METHOD OF TREATING A CARBON BODY WHICH COMPRISES THE STEPS OF FORMING A LIQUID EUTECTIC MIXTURE OF CARBON AND METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON AND MIXTURES THEREOF ON THE SURFACE OF A CARBON BODY AT AN ELEVATED TEMPERATURE, AND THEREAFTER COOLING THE CARBON BODY, WHEREBY CARBON IS PRECIPITATED FROM SAID EUTECTIC MIXTURE.
Claim 2
Independent Claim
57 words
A METHOD OF TREATING A CARBON BODY WHICH COMPRISES THE STEPS OF FORMING A LIQUID EUTECTIC MIXTURE OF CARBON AND METAL SELECTED FROM THE GROUP CONSISTING OF NICKEL, IRON AND MIXTURES THEREOF ON THE SURFACE OF A CARBON BODY AT AN ELEVATED TEMPERATURE, AND THEREAFTER COOLING THE CARBON BODY, WHEREBY CARBON IS PRECIPITATED FROM SAID EUTECTIC MIXTURE.
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |