Patent US3101403A successfully refreshed from Google Patents.
US3101403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining carbon
Assignee: American Metal Products Co
•
Filing: 1959-12-28
•
Granted: 1963-08-20
•
Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 John G Lewis
- 👤 Harold A Ohlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:18
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/14; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
THE METHOD OF BONDING CARBON SURFACES TO EACH OTHER WHICH COMPRISES PLACING SAID SURFACES TOGETHER IN A NON-REACTIVE ATMOSPHERE; BRINGING INTO THE PROXIMITY OF SAID SURFACES A WELDING ROD MADE OF A METAL SELECTED FFROM THE METALS OF GROUP IV-A, GROUP V-A, AND GROUP VI-A OF THE PERIODIC TABLE OF THE ELEMENTS; AND STRIKING AN ELECTRIC ARC BETWEEN SAID ROD AND SAID CARBON FOR A PERIOD OF TIME SUFFICIENT TO MELT SAID METAL AND CAUSE SAID METAL TO PENETRATE A SUBSTANTIAL DISTANCE INTO SAID CARBON SURFACES.
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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |