Patent US3617420A successfully refreshed from Google Patents.
Patent US3235430A successfully refreshed from Google Patents.
US3235430A
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Method and apparatus for forming cut preforms from wound laminate material
Assignee: Reinforced Plastic Container Corp
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Filing: 1963-06-04
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Granted: 1966-02-15
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Wilkins William Burdette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:02
CPC Classifications
B; B31; B31D; B31D1/00; B31D1/0075; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/12; Y10T83/00; Y10T83/384; Y10T83/385; Y10T83/788; Y10T83/793
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE METHOD OF FORMING LAMINATED BODIES FROM CONTINUOUS STOCK ON A MANDREL HAVING A LONGITUDINALLY EXTENDING KNIFE PROTRUDING FROM OPPOSED SURFACES THEREOF, WHICH COMPRISES SPREADING A BONDING RESIN ON SAID STOCK WINDING STOCK IN A CONTINOUS WINDING ON SAID MANDREL OVER SAID PROTRUDING KNIVES, AND ROLLING PARTING ROLLERS ALONG SAID KNIVES TO PART THE LAMINATIONS ALONG EACH OF SAID KNIVES.
Claim 2
Independent Claim
60 words
THE METHOD OF FORMING LAMINATED BODIES FROM CONTINUOUS STOCK ON A MANDREL HAVING A LONGITUDINALLY EXTENDING KNIFE PROTRUDING FROM OPPOSED SURFACES THEREOF, WHICH COMPRISES SPREADING A BONDING RESIN ON SAID STOCK WINDING STOCK IN A CONTINOUS WINDING ON SAID MANDREL OVER SAID PROTRUDING KNIVES, AND ROLLING PARTING ROLLERS ALONG SAID KNIVES TO PART THE LAMINATIONS ALONG EACH OF SAID KNIVES.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |