US3501905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliver spinning method and apparatus
Assignee: Rieter Ingolstadt GmbH
•
Filing: 1967-04-24
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Granted: 1970-03-24
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Hans Landwehrkamp
- 👤 Franz Schreyer
- 👤 Rolf Canzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/48; D01H4/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3210923A
Cited
US3121306A
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US3115001A
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US3132465A
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US3354631A
Cited
US3354627A
Cited
US3334479A
Cited
US3354626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |