US3521378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination drying and tentering machine
Assignee: Truetzschler Nonwovens GmbH
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Filing: 1969-06-09
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Granted: 1970-07-21
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Expires: 1989-06-09
Abstract
No abstract record available.
Inventors
- 👤 Heinz Fleissner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:34
CPC Classifications
D; D06; D06B; D06B19/00; D06B19/0005; D06B19/0047; D06B19/0058; D06C; D06C7/00; D06C7/02; F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/186; F16B21/20; F26; F26B; F26B13/00; F26B13/10; F26B13/12; F26B13/14; F26B13/16; D06C2700/00; D06C2700/13; Y; Y10; Y10S; Y10S68/00; Y10S68/903
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) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |