US3075872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for molding pulp articles
Assignee: Diamond National Corp
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Filing: 1960-06-23
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Granted: 1963-01-29
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Richard F Reifers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:53
CPC Classifications
D; D21; D21J; D21J7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
APPARATUS FOR PRODUCING A MOLDED PULP ARTICLE HAVING SAID WALLS AND HAVING A NEGATIVE DRAFT IN THE SIDE WALLS THEREOF WHICH COMPRISES A FORAMINOUS MOLD HAVING A CONFIGURATION WITHOUT SAID NEGATIVE DRAFT IN THE SIDE WALLS THEREOF, AND A TRANSFER DIE ADAPTED TO REMOVE A PREFORM FROM SAID MMOLD, SAID TRANSFER DIE HAVING SAID NEGATIVE DRAFT IN THE SIDE WALLS THEREOF CONFORMING TO THE CONFIGURATION OF THE DESIRED FINISHED ARTICLE, AND PERFORATIONS THROUGH SAID DIE FOR APPLYING SUCTION WHEREBY SAID PREFORM MAY BE SIMULTANEOUSLY REMOVED FROM SAID MOLD AND
Claim 2
Dependent Claim
89 words
APPARATUS FOR PRODUCING A MOLDED PULP ARTICLE HAVING SAID WALLS AND HAVING A NEGATIVE DRAFT IN THE SIDE WALLS THEREOF WHICH COMPRISES A FORAMINOUS MOLD HAVING A CONFIGURATION WITHOUT SAID NEGATIVE DRAFT IN THE SIDE WALLS THEREOF, AND A TRANSFER DIE ADAPTED TO REMOVE A PREFORM FROM SAID MMOLD, SAID TRANSFER DIE HAVING SAID NEGATIVE DRAFT IN THE SIDE WALLS THEREOF CONFORMING TO THE CONFIGURATION OF THE DESIRED FINISHED ARTICLE, AND PERFORATIONS THROUGH SAID DIE FOR APPLYING SUCTION WHEREBY SAID PREFORM MAY BE SIMULTANEOUSLY REMOVED FROM SAID MOLD AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |