Patent US4560069A successfully refreshed from Google Patents.
Patent US3072969A successfully refreshed from Google Patents.
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 18:19
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.
References Cited (Backward Citations)
US2696642A
Cited
US537187A
Cited
US1052081A
Cited
US1592536A
Cited
US1557748A
Cited
US2094823A
Cited
US2354916A
Cited
US2523234A
Cited
US2601700A
Cited
US2632202A
Cited
US2790994A
Cited
GB784503A
Cited
FR1126402A
Cited
US2799048A
Cited
US2976571A
Cited
US2975476A
Cited
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 |