Patent US2622990A successfully refreshed from Google Patents.
US2622990A
Expired / Lapsed
US
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Method of manufacturing number plates
Assignee: AT&T Inc
•
Filing: 1948-06-10
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Granted: 1952-12-23
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Expires: 1968-06-10
Abstract
No abstract record available.
Inventors
- 👤 Franklin B Rinck
- 👤 Edwin K Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:46
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A METHOD OF MAKING A NUMBER PLATE FROM A TRANSPARENT PLASTIC MEMBER HAVING RELATIVELY SMALL INDICIA DEFINING RECESSES FORMED IN THE REAR FACE THEREOF WHICH COMPRISES APPLYING A COATING OF A COMPOSITION OF ONE COLOR ONTO THE RELATIVELY HARD SURFACE OF A TRANSFER ROLLER, ROLLING THE COATING OF SAID COMPOSITION ON THE ROLLER INTO ENGAGEMENT WITH THE RAISED PORTIONS OF THE REAR FACE OF THE NUMBER PLATE AND OVER THE RECESSES TO CAUSE A PORTION OF SAID COMPOSITION APPLIED TO THE ROLLER TO ADHERE TO AND COAT ONLY THE RAISED PORTIONS OF THE REAR FACE OF SAID NUM-
References Cited (Backward Citations)
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US1904289A
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US1800146A
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US2294865A
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US2376305A
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US2240900A
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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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |