US3142089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for finishing blow molded articles
Assignee: Monsanto Chemicals Ltd
•
Filing: 1961-04-12
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Granted: 1964-07-28
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Expires: 1981-04-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Wilkalis
- 👤 Donald R Seifel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:52
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/48; B29C49/50; B29C49/02; B29C49/06905; B29C49/0691; B29C51/00; B29C51/10; Y; Y10; Y10S; Y10S425/00; Y10S425/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A MOLDING PRESS, A PLURALITY OF FILM MOLD ELEMENTS FORMING IN JUXTAPOSITION A MOLD CAVITY, AT LEAST TWO OF SAID ELEMENTS BEING JUXTAPOSABLE ADJACENT A PARTING PLANE OF SAID CAVITY AND HAVING PINCHING LANDS OF LIMITED WIDTH IN SAID PLANE OUTSIDE THE CAVITY, A PAIR OF STRIPPING MEMBERS POSITIONABLE ON EITHER SIDE OF SAID PLANE PROXIMATE TO BUT SPACED FROM THE MOLD LANDS, MEANS FOR FORCING AT LEAST ONE OF THE STRIPPING MEMBERS TOWARD THE OTHER, AND DRIVE MEANS OPERABLE DURING OPERATION OF THE FIRST RECITED MEANS TO CAUSE PARALLEL RELATIVE DISPLACEMENT OF THE STRIPPING MEMBERS AND THE PINCHING LANDS BY MOVEMENT TRANSVERSE TO SAID PLANE TO PART EXTERNAL FILM PORTIONS FROM FILM PORTIONS ENGAGED BETWEEN THE PINCHING LANDS.
Claim 2
Dependent Claim
120 words
IN A MOLDING PRESS, A PLURALITY OF FILM MOLD ELEMENTS FORMING IN JUXTAPOSITION A MOLD CAVITY, AT LEAST TWO OF SAID ELEMENTS BEING JUXTAPOSABLE ADJACENT A PARTING PLANE OF SAID CAVITY AND HAVING PINCHING LANDS OF LIMITED WIDTH IN SAID PLANE OUTSIDE THE CAVITY, A PAIR OF STRIPPING MEMBERS POSITIONABLE ON EITHER SIDE OF SAID PLANE PROXIMATE TO BUT SPACED FROM THE MOLD LANDS, MEANS FOR FORCING AT LEAST ONE OF THE STRIPPING MEMBERS TOWARD THE OTHER, AND DRIVE MEANS OPERABLE DURING OPERATION OF THE FIRST RECITED MEANS TO CAUSE PARALLEL RELATIVE DISPLACEMENT OF THE STRIPPING MEMBERS AND THE PINCHING LANDS BY MOVEMENT TRANSVERSE TO SAID PLANE TO PART EXTERNAL FILM PORTIONS FROM FILM PORTIONS ENGAGED BETWEEN THE PINCHING LANDS.
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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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |