US3103168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing plates
Assignee: Braco Engraving Co
•
Filing: 1962-03-19
•
Granted: 1963-09-10
•
Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Braznell George Stuart
- 👤 Ralph E Mcilvaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:37
CPC Classifications
B; B41; B41N; B41N1/00; B41N1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
THE METHOD OF MAKING A MADE-READY RUBBER PRINTING PLATE HAVING ON THE PRINTING FACCE THEREOF A PRINTING PATTERN IN RELIEF IN RUBBER, SAID PATTERN HAVING FIRST AND SECOND PRINTING AREAS AS TO WHICH HIGHER PRINTING PRESSURE IS REQUIRED FOR THE FIRST THAN FOR THE SECOND FOR PROPER PRINTING IMPRESSION, SAID METHOD COMPRISING FORMING A MATRIX HAVING AN IMPRESSION OF SAID PATTERN IN REVERSE OF RELIEF WITH THE AREA THEREOF CORRESPONDING TO BOTH SAID FIRST AND SECOND PRINTING AREAS OF SUBSTANTIALLY THE SAME DEPTH, APPLYING UNVULACANIZED RUBBER OVER THE MATRIX, APPLYING OVER THE BACK OF THE RUBBER A FLAT TEMPLATE WHICH IS SUBSTANTIALLY THINNER THAN THE RUBBER, SAID TEMPLATE BEING OF SUCH OUTLINE AND SO POSITIONED RELATIVE TO THE MATRIX AS TO LEAVE UNCOVERED BY TE TEMPLATE AN AREA AT THE BACK OF THE RUBBER HAVING A BOUNDARY SUCH AS TO CIRCUMSCRIBE THE BOUNDARY OF THE FIRST RPRINTING AREA WHILE COVERING A PORTON OF THE BACK OF THE RUBBER IN
Claim 2
Independent Claim
159 words
THE METHOD OF MAKING A MADE-READY RUBBER PRINTING PLATE HAVING ON THE PRINTING FACCE THEREOF A PRINTING PATTERN IN RELIEF IN RUBBER, SAID PATTERN HAVING FIRST AND SECOND PRINTING AREAS AS TO WHICH HIGHER PRINTING PRESSURE IS REQUIRED FOR THE FIRST THAN FOR THE SECOND FOR PROPER PRINTING IMPRESSION, SAID METHOD COMPRISING FORMING A MATRIX HAVING AN IMPRESSION OF SAID PATTERN IN REVERSE OF RELIEF WITH THE AREA THEREOF CORRESPONDING TO BOTH SAID FIRST AND SECOND PRINTING AREAS OF SUBSTANTIALLY THE SAME DEPTH, APPLYING UNVULACANIZED RUBBER OVER THE MATRIX, APPLYING OVER THE BACK OF THE RUBBER A FLAT TEMPLATE WHICH IS SUBSTANTIALLY THINNER THAN THE RUBBER, SAID TEMPLATE BEING OF SUCH OUTLINE AND SO POSITIONED RELATIVE TO THE MATRIX AS TO LEAVE UNCOVERED BY TE TEMPLATE AN AREA AT THE BACK OF THE RUBBER HAVING A BOUNDARY SUCH AS TO CIRCUMSCRIBE THE BOUNDARY OF THE FIRST RPRINTING AREA WHILE COVERING A PORTON OF THE BACK OF THE RUBBER IN
References Cited (Backward Citations)
US2026021A
Cited
US1947986A
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US2088399A
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US2182802A
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US2789500A
Cited
US2814990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |