US2631723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner cushioning packaging device
Assignee: Individual
•
Filing: 1949-12-08
•
Granted: 1953-03-17
•
Expires: 1969-12-08
Abstract
No abstract record available.
Inventors
- 👤 Harold I Ellsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:37
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/053; B65D81/057; B65D71/00; B65D71/02; B65D71/04; B65D2581/00; B65D2581/02; B65D2581/05; B65D2581/051; B65D2581/052; B65D2581/053; Y; Y10; Y10S; Y10S229/00; Y10S229/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |