Patent US3065097A successfully refreshed from Google Patents.
US3065097A
Expired / Lapsed
US
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Method of dusting flexible film tubing internally
Assignee: Dow Chemical Co
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Filing: 1960-01-20
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Granted: 1962-11-20
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Expires: 1980-01-20
Abstract
No abstract record available.
Inventors
- 👤 Carl P Zupic
- 👤 Dwight E Carey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:58
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0067; B29C37/0071; B29C48/00; B29C48/001; B29C48/0018; B29C48/0019; B29C48/03; B29C48/09; B29C48/10; B29L; B29L2023/00; B29L2023/001
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
A METHOD FOR OVERCOMING THE BLOCKING CHARACTERISTICS OF VARIOUS THIN POLYMERIC TYPE TUBING COMPRISING THE STEPS OF, ARRANGING THE TUBING FOR MOVEMENT IN A LONGGITUDINAL DIRECTION, ADMITTING A PRESSURE MEDIUM TO THE TUBING TO FORM A BUBBLE, ARRANGING A SELF-POWERED DUSTING MECHANISM INCLUDING A BLOWER WITHIN THE BUBBLE AND SUPPORTING IT SO THAT THE AXIS OF THE BLOWER EXTENDS IN THE LONGITUDINAL DIRECTION OF THE TUBING, INITIATING OPERA-
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) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |