Patent US2519442A successfully refreshed from Google Patents.
US2519442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing cellulosic filler united by polyvinyl chloride
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1945-05-26
•
Granted: 1950-08-22
•
Expires: 1965-05-26
Abstract
No abstract record available.
Inventors
- 👤 Delorme Jean
- 👤 Desthieux Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:08
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/007; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3167
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
16 words
SHOE FINDINGS AND COMPOSITIONS OF LIKE CONSTITUTION HAVING AS BASIC INGREDIENTS CORK, CAMPHOR AND POLYVINYL CHLORIDE.
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) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |