US3238562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for a spinning shaft
Assignee: Bayer AG
•
Filing: 1963-08-14
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Granted: 1966-03-08
•
Expires: 1983-08-14
Abstract
No abstract record available.
Inventors
- 👤 Steidlinger Franz-Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:28
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08; D01D5/088; D01D5/092; D01D5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A CLOSURE MECHANISM FOR A SPINNING SHAFT, COMPRISING A LID HINGEABLY CONNECTED TO THE LOWER EDGE OF THE SHAFT AND PROVIDED WITH A CONTINUOUS CENTRAL BORE AND AT LEAST ONE FUNNEL-SHAPED ATTACHMENT ON ITS UNDERSURFACE, SAID LID AND SAID FUNNEL-SHAPED ATTACHMENT BEING PROVIDED WITH LONGITUDINAL SLIT EXTENDING THROUGH SAID LID AND THE WALL OF SAID ATTACHMENT, LOCKING MEMBERS ENGAGING IN GROOVES IN SAID LID AND SWINGABLE IN A HORIZONTAL
Claim 2
Dependent Claim
69 words
A CLOSURE MECHANISM FOR A SPINNING SHAFT, COMPRISING A LID HINGEABLY CONNECTED TO THE LOWER EDGE OF THE SHAFT AND PROVIDED WITH A CONTINUOUS CENTRAL BORE AND AT LEAST ONE FUNNEL-SHAPED ATTACHMENT ON ITS UNDERSURFACE, SAID LID AND SAID FUNNEL-SHAPED ATTACHMENT BEING PROVIDED WITH LONGITUDINAL SLIT EXTENDING THROUGH SAID LID AND THE WALL OF SAID ATTACHMENT, LOCKING MEMBERS ENGAGING IN GROOVES IN SAID LID AND SWINGABLE IN A HORIZONTAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |