US3373664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing cross-bottom valve bags
Assignee: Windmoeller and Hoelscher KG
•
Filing: 1964-02-05
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Granted: 1968-03-19
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Expires: 1984-02-05
Abstract
No abstract record available.
Inventors
- 👤 Brockmuller Friedrich Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:21
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B2150/00; B31B2150/001; B31B2150/0014; B31B2150/003; B31B2160/00; B31B2160/10; B31B2160/106; B31B2160/20; B31B70/92; B31B70/94; B31B70/96; B31B70/98
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |