Patent US3460444A successfully refreshed from Google Patents.
US3460444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for manufacturing envelopes,flat bags and the like
Assignee: Winkler and Duennebier Maschinefabrik und Eisengiesserei GmbH
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Filing: 1967-08-04
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Granted: 1969-08-12
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Expires: 1987-08-04
Abstract
No abstract record available.
Inventors
- 👤 Richard Winkler
- 👤 Kurt Dunnebier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:25
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/02; B05C1/027; B05C9/00; B05C9/04; B31; B31B; B31B2150/00; B31B2160/00; B31B2160/10; B31B2160/102; B31B2170/00; B31B70/00; B31B70/60; B31B70/62; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2019996A
Cited
US2888902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |