US2146532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion process
Assignee: EIDP Inc
•
Filing: 1936-03-13
•
Granted: 1939-02-07
•
Expires: 1956-03-13
Abstract
No abstract record available.
Inventors
- 👤 Paul W Crane
- 👤 Reuben T Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:45
CPC Classifications
C; C08; C08L; C08L1/00; B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/60; B29B7/80; B29B7/82; B29B7/826; B29B7/84; B29B7/845; B29B7/86; Y; Y10; Y10S; Y10S159/00; Y10S159/35; Y10T; Y10T428/00; Y10T428/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-02-06 | 1942-08-08 | 1943-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-02-06 | 1946-08-08 | 1947-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-02-06 | 1950-08-08 | 1951-02-07 | $7700.00 | Window Closed / Lapsed |