US3172929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a hollow plastic article
Assignee: —
•
Filing: 1964-02-24
•
Granted: 1965-03-09
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:31
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/53; B29C45/54; B29C45/461; B29C49/00; B29C49/02; B29C49/06; B29C43/00; B29C43/32; B29C2043/3272; B29C2043/3283; B29C43/36; B29C43/361; B29C2043/3615; B29C2043/3618; B29C2043/3631; B29C2043/3665; B29C2049/023; B29C2949/00; B29C2949/20; B29C2949/22; B29C2949/24; B29C2949/26; B29C2949/28; B29C2949/30; B29C2949/3024; B29C2949/3032; B29K; B29K2105/00; B29K2105/25; B29K2105/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A METHOD OF MAKING A BLOWN PLASTIC CONTAINER BY BLOWING A PREFORM, THE STEPS OF SUPERIMPOSING AN ANNULAR FINISH MOLD OVER A MAIN INJECTION MOLD HAVING OPEN UPPER AND LOWER ENDS; INSERTING A CENTRAL MANDREL THROUGH THE FINISH MOLD AND INTO THE MAIN MOLD; INTRODUCING PLASTICIZED MATERIAL THROUGH THE OPEN LOWER END OF THE MOLD TO FILL THE CAVITY DEFINED BETWEEN THE MANDREL, THE FINISH MOLD AND THE MAIN MOLD; CLOSING THE MOLD
Claim 2
Dependent Claim
74 words
IN A METHOD OF MAKING A BLOWN PLASTIC CONTAINER BY BLOWING A PREFORM, THE STEPS OF SUPERIMPOSING AN ANNULAR FINISH MOLD OVER A MAIN INJECTION MOLD HAVING OPEN UPPER AND LOWER ENDS; INSERTING A CENTRAL MANDREL THROUGH THE FINISH MOLD AND INTO THE MAIN MOLD; INTRODUCING PLASTICIZED MATERIAL THROUGH THE OPEN LOWER END OF THE MOLD TO FILL THE CAVITY DEFINED BETWEEN THE MANDREL, THE FINISH MOLD AND THE MAIN MOLD; CLOSING THE MOLD
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |