US2545868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for manufacturing plastic sheets
Assignee: Plax Corp
•
Filing: 1947-10-11
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Granted: 1951-03-20
•
Expires: 1967-10-11
Abstract
No abstract record available.
Inventors
- 👤 Bailey James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/16; B29C31/00; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/14; B29C48/00; B29C48/03; B29C48/07; B29C48/08; Y; Y10; Y10S; Y10S425/00; Y10S425/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |