Patent US5638358A successfully refreshed from Google Patents.
Patent US3488693A successfully refreshed from Google Patents.
US3488693A
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Bag-making machine
Assignee: Windmoeller and Hoelscher KG
•
Filing: 1968-02-26
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Granted: 1970-01-06
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Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 Friedhelm Brinkmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:39
CPC Classifications
B; B65; B65H; B65H33/00; B65H33/16; B31; B31B; B31B70/00; B31B70/74; B31B70/92; B31B70/98; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/422; B65H2301/4223; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/102; Y10S414/103; Y10S414/104; Y10S414/114; Y10S414/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US602238A
Cited
US1266737A
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US1655804A
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US1856978A
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US2109050A
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US3150578A
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US3188084A
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US3390508A
Cited
US3379320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |