US1458505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic composition for films or filaments for cinematographic and other industrial purposes
Assignee: Individual
•
Filing: 1921-04-02
•
Granted: 1923-06-12
•
Expires: 1941-04-02
Abstract
No abstract record available.
Inventors
- 👤 Stevenson Walter James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523
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) | 1926-06-11 | 1926-12-11 | 1927-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-06-11 | 1930-12-11 | 1931-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-06-11 | 1934-12-11 | 1935-06-12 | $7700.00 | Window Closed / Lapsed |