US3256128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making fiber reinforced plastic pipe
Assignee: Fibercast Co
•
Filing: 1962-12-28
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Granted: 1966-06-14
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Henry M Richardson
- 👤 Alfred C Alberghini
- 👤 Fred E Wiley
- 👤 Wesley S Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:22
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/82; B29C53/821; B29C53/828; Y; Y10; Y10S; Y10S156/00; Y10S156/934; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/12; Y10T156/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN AN APPARATUS FOR MAKING TUBULAR ARTICLES: (A) MEANS FOR CONTINUOUSLY LONGITUDINALLY ADVANCING A MANDREL EMBODYING A PLURALITY OF SECTIONS SUCCESSIVELY CONNECTED TO ONE ANOTHER BY COULINGS OF DIFFERENT MAGNETIC PROPERTIES THAN THE MANDREL, (B) MEANS FOR HELICALLY WRAPPING ON THE MANDREL A PLURALITY OF LAYERS OF REINFORCED FIBROUS TAPES TO PROGRESSIVELY BUILD UP A PREFORM ON EACH CONSECUTIVE MANDREL SECITON, (C) A CUT-OFF UNIT COMPRISING CUTTERS AND MEANS TO OPERATE THE SAME TO ENGAGE THEM WITH AND SEVER THE ARTICLE PREFORM ON EACH OF THE FOREMOST MANDREL SEC-
Claim 2
Dependent Claim
89 words
IN AN APPARATUS FOR MAKING TUBULAR ARTICLES: (A) MEANS FOR CONTINUOUSLY LONGITUDINALLY ADVANCING A MANDREL EMBODYING A PLURALITY OF SECTIONS SUCCESSIVELY CONNECTED TO ONE ANOTHER BY COULINGS OF DIFFERENT MAGNETIC PROPERTIES THAN THE MANDREL, (B) MEANS FOR HELICALLY WRAPPING ON THE MANDREL A PLURALITY OF LAYERS OF REINFORCED FIBROUS TAPES TO PROGRESSIVELY BUILD UP A PREFORM ON EACH CONSECUTIVE MANDREL SECITON, (C) A CUT-OFF UNIT COMPRISING CUTTERS AND MEANS TO OPERATE THE SAME TO ENGAGE THEM WITH AND SEVER THE ARTICLE PREFORM ON EACH OF THE FOREMOST MANDREL SEC-
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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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |