US2624772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact between aluminum and graphite
Assignee: Alcan Research and Development Ltd
•
Filing: 1948-08-24
•
Granted: 1953-01-06
•
Expires: 1968-08-24
Abstract
No abstract record available.
Inventors
- 👤 Norman W F Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:57
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN ELECTRICALLY CONNECTED STRUCTURE COMPRISING A GRAPHITE ELEMENT, A MASSIVE ALUMINUM ELEMENT, A LOW RESISTANCE FILM OF A STABLE METAL OTHER THAN ALUMINUM DISPOSED BETWEEN SAID ELE-
Claim 2
Dependent Claim
27 words
AN ELECTRICALLY CONNECTED STRUCTURE COMPRISING A GRAPHITE ELEMENT, A MASSIVE ALUMINUM ELEMENT, A LOW RESISTANCE FILM OF A STABLE METAL OTHER THAN ALUMINUM DISPOSED BETWEEN SAID ELE-
References Cited (Backward Citations)
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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) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |