US3105400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling of aluminous metal foil
Assignee: Alcoa Corp
•
Filing: 1954-05-10
•
Granted: 1963-10-01
•
Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Vern L Goppelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:33
CPC Classifications
C; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/34; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0242; B21B3/00; B21B2003/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A METHOD OF COLD ROLLING METAL FOIL THE STEP COMPRISING SUPPLYING TO THE INTERFACE BETWEEN THE ROLLS AND THE FOIL AN COMPOSITION CONSISTING ESSENTIALLY OF BUTYL STEARATE WHEREBY A GREATER REDUCTION CAN BE OBTAINED PER ROLL PASS THAN WITH A MINERAL OIL LUBRICANT UNDER THE SAME ROLLING CONDITIONS AND THE FOIL BECOMES COATED WITH SAID BUTYL STEARATE.
Claim 2
Dependent Claim
58 words
IN A METHOD OF COLD ROLLING METAL FOIL THE STEP COMPRISING SUPPLYING TO THE INTERFACE BETWEEN THE ROLLS AND THE FOIL AN COMPOSITION CONSISTING ESSENTIALLY OF BUTYL STEARATE WHEREBY A GREATER REDUCTION CAN BE OBTAINED PER ROLL PASS THAN WITH A MINERAL OIL LUBRICANT UNDER THE SAME ROLLING CONDITIONS AND THE FOIL BECOMES COATED WITH SAID BUTYL STEARATE.
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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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |