US3096543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film extrusion apparatus having improved film thickness control means
Assignee: Olin Corp
•
Filing: 1962-03-08
•
Granted: 1963-07-09
•
Expires: 1982-03-08
Abstract
No abstract record available.
Inventors
- 👤 Henry A Konopacke
- 👤 John C Cunnigham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:27
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/313; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
IN FILM EXTRUSION APPARATUS HAVING A RIGID WALL MEMBER AND ADJACENT THERETO A FLEXIBLE WALL MEMBER, WITH THE SAID MEMBERS DEFINING A DIE CAVITY TERMINATED BY A PAIR OF OPPOSED LIPS, THE COMBINATION OF A RIGID SUPPORT MEMBER ADJACENT TO THE SAID FLEXIBLE WALL MEMBER AND SECURED THERETO AT ONE END, INTERNALLY THREADED SPOOLS ROTATABLY MOUNTED IN SLOTS SPACED ALONG THE FREE END OF THE SAID SUPPORT MEMBER, EACH OF SAID SPOOLS HAVING A PAIR OF OPPOSED CURVED FLANGE SURFACES BEARING ON THE SAID SUPPORT
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |