US3052014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame treatment of aluminum
Assignee: Alcoa Corp
•
Filing: 1958-04-21
•
Granted: 1962-09-04
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 David J Falcon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:26
CPC Classifications
C; C23; C23G; C23G5/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12993
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
A METHOD FOR TREATING A BRIGHT SURFACE OF ALUMINUM FOIL STRIP IN AN AS-ROLLED TEMPER AND RETAINING RESIDUAL ROLLING LUBRICANT, WHICH COMPRISES IMPINGING A GAS FLAME ON SAID SURFACE AS THE SURFACE OF SAID FOIL STRIP OPPOSITE THE FLAME PASSES CONTINOUSLY AND ARCUATELY IN CONTACT WITH A RELATIVELY COOL HEAT CONDUCTING SURFACE, AND THEREBY VOLATILIZING SUBSTANTIALLY ALL OF THE RESIDUAL ROLLING
References Cited (Backward Citations)
US998900A
Cited
US1339710A
Cited
US1864257A
Cited
US2189836A
Cited
US2295701A
Cited
US2480455A
Cited
US2506364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |