US2946087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for calendering plastic sheet material
Assignee: Continental-Diamond Fibre Corp
•
Filing: 1957-07-26
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Granted: 1960-07-26
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Expires: 1977-07-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Haroldson
- 👤 Jr Edward A Mulrooney
- 👤 Hogan William Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:12
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22; B29C43/24; Y; Y10; Y10S; Y10S264/00; Y10S264/68; Y10S425/00; Y10S425/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2367005A
Cited
US2412187A
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US2594846A
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US2618012A
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US2790999A
Cited
US2753591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |