US2485512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of transparent alginic films
Assignee: Alginate Industries Ltd
•
Filing: 1947-12-19
•
Granted: 1949-10-18
•
Expires: 1967-12-19
Abstract
No abstract record available.
Inventors
- 👤 Rose Robert Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:41
CPC Classifications
C; C08; C08L; C08L5/00; C08L5/04; C08J; C08J5/00; C08J5/18; C08J2305/00; C08J2305/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |