US3373079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulp and fiber molding apparatus including resin application means
Assignee: Individual
•
Filing: 1964-09-18
•
Granted: 1968-03-12
•
Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 Watson S Eastman
- 👤 Leo M Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:25
CPC Classifications
B; B27; B27N; B27N5/00; B27N5/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
A PULP MOLDING MACHINE COMPRISING SUCTION PICKUP DIES, MEANS FOR FORMING PRE-FORMS ON SAID DIES FROM AN AQUEOUS SLURRY, A FIRST DRYING STAGE ARRANGED TO DRY SAID PRE-FORMS FROM ONE SIDE TO CENTER, A SECOND DRYING STAGE ARRANGED TO DRY SAID PRE-FORMS FROM OPPOSITE SIDE TO CENTER, MEANS TO MOVE SAID PRE-FORMS FROM SAID FORMING MEANS TO SAID FIRST DRYING STAGE AND FROM SAID FIRST DRYING STAGE TO SAID SECOND DRYING STAGE, A HIGH COMPRESSION STAGE, AND MEANS FOR MOVING SAID PRE-FORMS FROM SAID SECOND DRYING STAGE TO SAID HIGH COMPRESSION STAGE.
References Cited (Backward Citations)
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US1984019A
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US2082409A
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US2365804A
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US2321756A
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US2429431A
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US2969835A
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US3033737A
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US3181202A
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US3205128A
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US3317371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |