Patent US3142601A successfully refreshed from Google Patents.
US3142601A
Expired / Lapsed
US
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Method and apparatus for fabricating a plastic container
Assignee: Individual
•
Filing: 1962-08-10
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Granted: 1964-07-28
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Edgwin R Polk
- 👤 Grassa Antonio La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:20
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/118; B29C66/1182; B29C66/13; B29C66/131; B29C66/1312; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/54; B29C66/542; B29C66/63; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81423; B29C66/816; B29C66/8167; B29C66/83; B29C66/832; B29C66/8322; B29C66/70; B29C66/71
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
THE METHOD OF PRODUCING THE HOLLOW TRAY-LIKE COMPONENT OF A LUGGAGE-TYPE CONTAINER COMRISING A WORK PIECE WITH A PERIPHERAL WALL AND A SPANNING CROSS WALL COMPOSED OF THEREMOPLASTIC SHEET MATERIAL WHICH ARE MATCHING IN HORIZONTAL PLANT, WHICH METHOD COMPRISES: (A) ARRANGING SAID CROSS WALL IN SUPERIMPOSED, MARGINALLY ABUTTING CONTACT WITH THE UPPER EDGE OF SAID PERIPHERAL WALL, (B) SUPPORTING THE PERPHERAL WALL OF THE WORK PIECE ADJACENT TO THE UPPER EDGE, (C) SUPPORTING THE SPANNING CROSS WALL, (D) APPLYING ARCUATE COMPRESSIVE FORCE TO THE ABUTTING EDGES OF THE PERIPHERAL WALL OF THE WORK PIECE AND SPANNING CROSS WALL, (E) SIMULTANEOUSLY SUPPLYING HIGH FREQUENCY ELECTRIC CURRENT AT THE POINT OF ARCUATE COMPRESSION FOR A PERIOD OF TIME SUFFICIENT TO MOLD AN D HEAT SEAL TOGETHER THE ABUTTING EDGES OF THE WORK PIECE IN A SMOOTHLY ROUNDED CONTINUOUS EDGE.
References Cited (Backward Citations)
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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 |