US3234077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a molded pulp egg carton
Assignee: Diamond International Corp
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Filing: 1965-04-08
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Granted: 1966-02-08
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Richard F Reifers
- 👤 Henry A Lord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:33
CPC Classifications
D; D21; D21J; D21J5/00; B; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B65D85/324
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
IN THE METHOD OF PRODUCING MOLDED PULP ARTICLES COMPRISING THE STEPS OF (A) SUCTION DEPOSITING A PULP PREFORM ON A MOLD AND FORMING A SEPARATOR POST SURROUNDED BY A PLURALITY OF CELLS WITH A THIN VERTICAL STRIP OF NATURAL RANDOM FIBER ON SAID POST AND DISPOSED IN EACH OF SAID CELLS; (B) PRESSING AND REFORMING SAID POST AND FORMING A CLOSED GEOMETRIC AREA ABOUT SAID THIN STRIPS OF NATURAL RANDOM FIBER AND REORIENTING THE FIBERS IN SAID CLOSED GEOMETRIC AREA BY PRESSING SAID CLOSED GEOMETRIC AREA INWARDLY AWAY FROM SAID CELLS; AND (C) PRESSING AND REFORMING SAID POST AND SAID CLOSED GEOMETRIC AREAS IN A REVERSE DIRECTION BY PRESSING THE AREA INTO SAID CELLS WHEREBY SAID CLOSED GEOMETRIC AREAS ATTAIN A SUBSTANTIALLY PLANAR ATTITUDE.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |