US2687066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine and method for making valve bags
Assignee: KRAFT BAG Corp
•
Filing: 1951-06-26
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Granted: 1954-08-24
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Expires: 1971-06-26
Abstract
No abstract record available.
Inventors
- 👤 Gilman Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B70/855; B31B2160/00; B31B2160/10; B31B70/85
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1583392A
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US1527467A
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US1780720A
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US2189847A
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US2265075A
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US2296146A
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US2559873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |