US2978748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die for extruding tubular plastic film
Assignee: Beazer East Inc
•
Filing: 1958-02-06
•
Granted: 1961-04-11
•
Expires: 1978-02-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Mccauley
- 👤 Svoboda George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:54
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2438974A
Cited
US2612656A
Cited
US2633602A
Cited
US2607078A
Cited
US2709834A
Cited
US2824337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |