Patent US2650311A successfully refreshed from Google Patents.
US2315366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converting bulk compound into vulcanized sponge rubber
Assignee: Sponge Rubber Products Co
•
Filing: 1940-05-08
•
Granted: 1943-03-30
•
Expires: 1960-05-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Daley
- 👤 Wyk Ludolf H De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:52
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/001; B29C48/0011; B29C48/04; B29C48/06; B29C48/07; B29C48/08; B29C48/25; B29C48/30; B29C48/303; B29C48/355; B29K; B29K2021/00; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/74; B29L2031/7406
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) | 1946-03-29 | 1946-09-28 | 1947-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-29 | 1950-09-28 | 1951-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-29 | 1954-09-28 | 1955-03-30 | $7700.00 | Window Closed / Lapsed |