US2672650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cork extrusion machine
Assignee: Individual
•
Filing: 1949-01-05
•
Granted: 1954-03-23
•
Expires: 1969-01-05
Abstract
No abstract record available.
Inventors
- 👤 Westerberg John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
B; B27; B27J; B27J5/00; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/06; B29C48/25; B29C48/30; B29C48/303; B29C48/04; B29K; B29K2105/00; B29K2105/06; B29K2105/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US815647A
Cited
US1455946A
Cited
US1671079A
Cited
US1680952A
Cited
US1577922A
Cited
US1603140A
Cited
US1905663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |