US2354243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for orienting the surface molecules of plastic materials
Assignee: Polaroid Corp
•
Filing: 1942-01-26
•
Granted: 1944-07-25
•
Expires: 1962-01-26
Abstract
No abstract record available.
Inventors
- 👤 Robert P Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:07
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/045; B29C55/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1947-07-25 | 1948-01-24 | 1948-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-25 | 1952-01-24 | 1952-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-25 | 1956-01-24 | 1956-07-25 | $7700.00 | Window Closed / Lapsed |