US2490781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preparing and utilizing sheet material for packaging purposes
Assignee: Individual
•
Filing: 1946-08-22
•
Granted: 1949-12-13
•
Expires: 1966-08-22
Abstract
No abstract record available.
Inventors
- 👤 William S Cloud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:59
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/02; B65B9/04; B65B9/045; B29; B29C; B29C51/00; B29C51/18; B29C51/20; B29C51/22; B29C51/225; B29C51/26; B29C51/266; B29C51/267; B29C55/00; B29C55/02; B29C55/10; B29C55/12; B29C55/14; B29C55/146; Y; Y10; Y10S; Y10S264/00; Y10S264/73; Y10S83/00; Y10S83/914
Claims Analysis
Total Claims: 0
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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) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |