US2387274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing valved or sleeved bags
Assignee: ST Regis Paper Co
•
Filing: 1945-04-17
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Granted: 1945-10-23
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Expires: 1965-04-17
Abstract
No abstract record available.
Inventors
- 👤 Harry E Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:28
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B70/855; B31B2160/00; B31B2160/10; B31B70/85; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/927; Y10S493/929
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) | 1948-10-22 | 1949-04-23 | 1949-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-22 | 1953-04-23 | 1953-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-22 | 1957-04-23 | 1957-10-23 | $7700.00 | Window Closed / Lapsed |