US3069769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making aluminum coated steel of high reflectivity
Assignee: Armco Inc
•
Filing: 1958-07-28
•
Granted: 1962-12-25
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Noel W Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:50
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/26; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS OF PRODUCING A BASE METAL SHEET STOCK COATED WITH ALUMINUM OR ALUMINUM ALLOY AND HAVING A BRIGHT, UNIFORM, MIRROR-LIKE FINISH OF HIGH REFLECTIVITY WHICH COMPRISES ASSOCIATING ALUMINUM OR ALUMINUM ALLOY WITH A BASE METAL SHEET STOCK BY HOT COATING TO A THICK NESS OF .005 INCH MAXIMUM, ROLLING THE COATED SHEET STOCK WITH AN ELONGATION NOT EXCEEDING ABOUT 1% BETWEEN A PAIR OF WORKING ROLLS HAVING A UNIFORMLY ROUGH SURFACE CHARACTERIZED BY SHOT BLASTING WITH GRIT RANGING FROM NUMBER 120 TO NUMBER 150 WHEREBY TO PRODUCE A DULL UNIFORM MATTE FINISH ON THE PRODUCT, AND THEREAFTER TEMPER ROLLING THE PRODUCT WITH AN ELONGATION NOT GREATER THAN ABOUT 1% BETWEEN A PAIR OF HIGHLY POLISHED WORKING ROLLS HAVING A PROFILOMETER READING OF ABOUT 1.5 MICRO INCHES WHEREBY TO SMOOTH OUT THE MATTE FINISH PREVIOUSLY PRODUCED.
Claim 2
Dependent Claim
136 words
A PROCESS OF PRODUCING A BASE METAL SHEET STOCK COATED WITH ALUMINUM OR ALUMINUM ALLOY AND HAVING A BRIGHT, UNIFORM, MIRROR-LIKE FINISH OF HIGH REFLECTIVITY WHICH COMPRISES ASSOCIATING ALUMINUM OR ALUMINUM ALLOY WITH A BASE METAL SHEET STOCK BY HOT COATING TO A THICK NESS OF .005 INCH MAXIMUM, ROLLING THE COATED SHEET STOCK WITH AN ELONGATION NOT EXCEEDING ABOUT 1% BETWEEN A PAIR OF WORKING ROLLS HAVING A UNIFORMLY ROUGH SURFACE CHARACTERIZED BY SHOT BLASTING WITH GRIT RANGING FROM NUMBER 120 TO NUMBER 150 WHEREBY TO PRODUCE A DULL UNIFORM MATTE FINISH ON THE PRODUCT, AND THEREAFTER TEMPER ROLLING THE PRODUCT WITH AN ELONGATION NOT GREATER THAN ABOUT 1% BETWEEN A PAIR OF HIGHLY POLISHED WORKING ROLLS HAVING A PROFILOMETER READING OF ABOUT 1.5 MICRO INCHES WHEREBY TO SMOOTH OUT THE MATTE FINISH PREVIOUSLY PRODUCED.
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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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |