Patent US3427372A successfully refreshed from Google Patents.
US3427372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for continuous production of slabs or sheets
Assignee: Berner Industries Inc
•
Filing: 1966-10-17
•
Granted: 1969-02-11
•
Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Erling Berner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:57
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; B29C67/205; B29B; B29B17/00; B29B17/0026; B29C44/00; B29C44/20; B29C44/206; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C44/46; B29C44/54; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/13; B29C48/25; B29C48/30; B29C48/35; B29C44/3415; B29C44/3426; B29K; B29K2105/00; B29K2105/04; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF PRODUCING A FOAMED PLASTIC BODY COMPRISING DELIVERING PLASTIC GRANULES CONTAINING A FOAMING AGENT BETWEEN CLOSELY SPACED ARCUATE SURFACES OF A MOLDING CHANNEL, ONLY ONE OF SAID SURFACES BEING MOVABLE, AT LEAST ONE OF SAID SURFACES HAVING PERFORATIONS THEREIN, AND PASSING A HEATING MEDIUM THROUGH SAID PERFORATIONS TO EXPAND AND MOLD THE GRANULES PASSING THROUGH SAID CHANNEL.
Claim 2
Independent Claim
59 words
THE METHOD OF PRODUCING A FOAMED PLASTIC BODY COMPRISING DELIVERING PLASTIC GRANULES CONTAINING A FOAMING AGENT BETWEEN CLOSELY SPACED ARCUATE SURFACES OF A MOLDING CHANNEL, ONLY ONE OF SAID SURFACES BEING MOVABLE, AT LEAST ONE OF SAID SURFACES HAVING PERFORATIONS THEREIN, AND PASSING A HEATING MEDIUM THROUGH SAID PERFORATIONS TO EXPAND AND MOLD THE GRANULES PASSING THROUGH SAID CHANNEL.
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |