US3072969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Provision of surface markings on plastics
Assignee: Individual
•
Filing: 1959-11-18
•
Granted: 1963-01-15
•
Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Bois John H Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:17
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/24; B29C33/00; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10S425/00; Y10S425/06; Y10S425/812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF APPLYING SURFACE MARKINGS TO A BLOW MOLDED PLASTIC ARTICLE DURING THE MOLDING OF SAID ARTICLE, SAID METHOD COMPRISING THE STEPS OF: FORMING THE DESIRED MARKINGS ON A FLAT, RELATIVELY FLEXIBLE POROUS SHEET MATERIAL MATRIX; POSITIONING THE MATRIX IN THE MOLD IN WHICH THE ARTICLE IS TO BE FORMED; INTRODUCING THE PLASTIC PARISON INTO THE MOLD; PROVIDING A VACUUM ON THE SIDE OF THE MATRIX REMOTE FROM SAID PARISON; AND MOLDING THE PARISON, WHEREBY THE SURFACE OF THE EXPANDING PARISON ADJACENT SAID MATRIX WILL HAVE FORMED THEREON THE MARKINGS OF SAID MATRIX FREE OF ANY BLEMISHES RESULTING FROM GAS ACCUMULATIONS BETWEEN THE MATRIX AND PARISON SURFACE.
Claim 2
Independent Claim
108 words
A METHOD OF APPLYING SURFACE MARKINGS TO A BLOW MOLDED PLASTIC ARTICLE DURING THE MOLDING OF SAID ARTICLE, SAID METHOD COMPRISING THE STEPS OF: FORMING THE DESIRED MARKINGS ON A FLAT, RELATIVELY FLEXIBLE POROUS SHEET MATERIAL MATRIX; POSITIONING THE MATRIX IN THE MOLD IN WHICH THE ARTICLE IS TO BE FORMED; INTRODUCING THE PLASTIC PARISON INTO THE MOLD; PROVIDING A VACUUM ON THE SIDE OF THE MATRIX REMOTE FROM SAID PARISON; AND MOLDING THE PARISON, WHEREBY THE SURFACE OF THE EXPANDING PARISON ADJACENT SAID MATRIX WILL HAVE FORMED THEREON THE MARKINGS OF SAID MATRIX FREE OF ANY BLEMISHES RESULTING FROM GAS ACCUMULATIONS BETWEEN THE MATRIX AND PARISON SURFACE.
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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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |