US2424567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing and method of making the same
Assignee: Armstrong World Industries Inc
•
Filing: 1942-12-24
•
Granted: 1947-07-29
•
Expires: 1962-12-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:15
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3284; Y; Y10; Y10S; Y10S277/00; Y10S277/934
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US524162A
Cited
US1409276A
Cited
US1673239A
Cited
US1788414A
Cited
US1931922A
Cited
US2052603A
Cited
US2008682A
Cited
GB518557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |