US2560038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for continuously stretching plastic sheets
Assignee: Bridgestone Firestone Inc
•
Filing: 1947-06-26
•
Granted: 1951-07-10
•
Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 James E Trainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:53
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/08; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1971667A
Cited
US2067025A
Cited
US2047497A
Cited
US2334022A
Cited
US2176925A
Cited
US2325204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |