Patent US3044112A successfully refreshed from Google Patents.
US3044112A
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Extrusion blowing apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1960-02-01
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Granted: 1962-07-17
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Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Daniel E Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:45
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/28; Y; Y10; Y10S; Y10S264/00; Y10S264/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2574555A
Cited
US2724860A
Cited
US2632202A
Cited
US2903740A
Cited
US2780835A
Cited
US2854691A
Cited
US2859476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |