Patent US3676037A successfully refreshed from Google Patents.
US3676037A
Expired / Lapsed
US
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Apparatus for molding hollow plastic articles
Assignee: Individual
•
Filing: 1971-01-04
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Granted: 1972-07-11
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Expires: 1991-01-04
Abstract
Abstract APPARATUS FOR MOLDING HOLLOW PLASTIC ARTICLES IN WHICH A MOLD IS SIMULTANEOUSLY ROTATED ABOUT TWO MUTUALLY PERPENDICULAR AXES, A SOURCE OF HEAT BEING LOCATED AT A POSITION GENERALLY RADIALLY DISPLACED RELATIVE TO A CIRCLE DESCRIBED BY THE MOLD. THE MOLD IS SUPPORTED IN A FRAME WHICH IS OF ADJUSTABLE SIZE, THERE BEING PROVIDED A TELESCOPIC DRIVE FOR ROTATION THE MOLD AND WHICH IS EXTENSIBLE TO ACCOMMODATE ADJUSTMENT IN THE FRAME.
Inventors
- 👤 Stewart Pivar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:19
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/04; B29C41/06; B29C41/34; B29C41/46
Claims Analysis
Total Claims: 0
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |