US3302245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming plastic articles
Assignee: Kent Plastics Corp
•
Filing: 1963-07-22
•
Granted: 1967-02-07
•
Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Scott Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:15
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/34; Y; Y10; Y10S; Y10S425/00; Y10S425/058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
APPARATUS FOR THERMOFORMING PLASTIC ARTICLES INCLUDING A MOLD HAVING A CORE PORTION MOVABLE BETWEEN AN EXTENDED POSITION WHEREAT SAID CORE PORTION EXTENDS INWARDLY INTO THE MOLD CAVITY SO AS TO PRODUCE AN OVERHANG FOR SHAPING ARTICLES AND A RETRACTED POSITION WHEREAT SAID CORE PORTION IS WITHDRAWN TO FACILITATE REMOVAL OF SHAPED ARTICLES, SAID CORE PORTION COMPRISING A PLURALITY OF COOPERABLE SEGMENTS PIVOTED TO ONE ANOTHER, GUIDE MEANS FOR CAUSING SAID SEGMENTS TO BE PIVOTED TO CHANGE THE DIRECTION OF SAID CORE PORTION DURING MOVEMENT OF SAID CORE PORTION FROM ONE POSITION TO THE OTHER, AND ACTUATING MEANS FOR CAUSING MOVEMENT OF SAID CORE PORTION BETWEEN SAID EXTENDED AND RETRACTED POSITIONS.
Claim 2
Dependent Claim
110 words
APPARATUS FOR THERMOFORMING PLASTIC ARTICLES INCLUDING A MOLD HAVING A CORE PORTION MOVABLE BETWEEN AN EXTENDED POSITION WHEREAT SAID CORE PORTION EXTENDS INWARDLY INTO THE MOLD CAVITY SO AS TO PRODUCE AN OVERHANG FOR SHAPING ARTICLES AND A RETRACTED POSITION WHEREAT SAID CORE PORTION IS WITHDRAWN TO FACILITATE REMOVAL OF SHAPED ARTICLES, SAID CORE PORTION COMPRISING A PLURALITY OF COOPERABLE SEGMENTS PIVOTED TO ONE ANOTHER, GUIDE MEANS FOR CAUSING SAID SEGMENTS TO BE PIVOTED TO CHANGE THE DIRECTION OF SAID CORE PORTION DURING MOVEMENT OF SAID CORE PORTION FROM ONE POSITION TO THE OTHER, AND ACTUATING MEANS FOR CAUSING MOVEMENT OF SAID CORE PORTION BETWEEN SAID EXTENDED AND RETRACTED POSITIONS.
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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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |