US2763029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing an optically clear polyethylene film
Assignee: Individual
•
Filing: 1953-06-19
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Granted: 1956-09-18
•
Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Rees E Tulloss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/28; B29C55/02; B29C55/10; B29C55/12; B29C55/14; B29C55/146; B29C48/00; B29C48/001; B29C48/0018; B29C48/0019; B29C48/03; B29C48/09; B29C48/10; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2995/00; B29K2995/0018; B29K2995/0026
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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |