US2307055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the extrusion of cork
Assignee: Armstrong World Industries Inc
•
Filing: 1939-08-23
•
Granted: 1943-01-05
•
Expires: 1959-08-23
Abstract
No abstract record available.
Inventors
- 👤 Francis B Menger
- 👤 Luther E Gaenzle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:22
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/0005; B30B15/0011; B27; B27J; B27J5/00; B29; B29C; B29C48/00; B29C48/022; B29C48/03; B29C48/04; B29K; B29K2105/00; B29K2105/06; B29K2105/12; Y; Y10; Y10S; Y10S425/00; Y10S425/115
Claims Analysis
Total Claims: 0
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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) | 1946-01-04 | 1946-07-06 | 1947-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-04 | 1950-07-06 | 1951-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-04 | 1954-07-06 | 1955-01-05 | $7700.00 | Window Closed / Lapsed |