Patent US3268378A successfully refreshed from Google Patents.
US3268378A
Expired / Lapsed
US
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Method of preparing mated embossing rolls
Assignee: Individual
•
Filing: 1964-12-16
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Granted: 1966-08-23
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Expires: 1984-12-16
Abstract
No abstract record available.
Inventors
- 👤 Frank W Broderick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:59
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/02; B; B44; B44B; B44B5/00; B44B5/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE PROCESS OF PREPARING MATED STEEL EMBOSSING ROLLS TO PRODUCE EMBOSSED ALUMINUM SHEET OR FOIL WITH PROTUBERANCES HAVING TOP ROUGH WEARING PATTERNED SURFACES COMPRISING PREPARING A MATCHED SET OF MALE AND FEMALE METAL EMBOSSING ROLLS BY CONVENTIONAL MASKING AND ETCHING PROCEDURE; COATING THE TOP MALE PROTUBERANCES WITH ACID RESIST; ACID ETCHING SAID COATED PROTUBERANCES TO INCREASE THE HEIGHT OF SAID PROTUBERANCES; REMOVING SAID ACID RESIST FROM SAID PROTUBERANCES; ROUGHENING THE TOP SURFACES OF SAID PROTUBERANCES OF SAID MALE ROLL WITH A
Claim 2
Dependent Claim
81 words
THE PROCESS OF PREPARING MATED STEEL EMBOSSING ROLLS TO PRODUCE EMBOSSED ALUMINUM SHEET OR FOIL WITH PROTUBERANCES HAVING TOP ROUGH WEARING PATTERNED SURFACES COMPRISING PREPARING A MATCHED SET OF MALE AND FEMALE METAL EMBOSSING ROLLS BY CONVENTIONAL MASKING AND ETCHING PROCEDURE; COATING THE TOP MALE PROTUBERANCES WITH ACID RESIST; ACID ETCHING SAID COATED PROTUBERANCES TO INCREASE THE HEIGHT OF SAID PROTUBERANCES; REMOVING SAID ACID RESIST FROM SAID PROTUBERANCES; ROUGHENING THE TOP SURFACES OF SAID PROTUBERANCES OF SAID MALE ROLL WITH A
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |