US3664536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw type closure cap
Assignee: Bayer Corp
•
Filing: 1970-05-22
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Granted: 1972-05-23
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Expires: 1990-05-22
Abstract
Abstract THE SCREW TYPE CLOSURE CAP INCLUDES A FIRST CAP FOR DIRECTLY SEALING A CONTAINER OPENING HAVING INTERNAL ENGAGEMENT MEANS FOR ENGAGING CLOSURE RETAINING MEANS ON THE CONTAINER. THE INTERNAL ENGAGEMENT MEANS IS FORMED TO PERMIT LIMITED LONGITUDINAL MOVEMENT OF THE FIRST CAP RELATIVE TO THE CLOSURE RETAINING MEANS AFTER ENGAGEMENT THEREWITH. AN OVERCAP IS FORMED TO OVERLIE SAID FIRST CAP AND APPLY PRESSURE THERETO TO MOVE SAID FIRST CAP LONGITUDINALLY AND INCREASE THE SEALING PRESSURE THEREOF AGAINST THE OPEN END OF THE CONTAINER.
Inventors
- 👤 Byron E Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:09
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/34; B65D41/348; B65D51/00; B65D51/18; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0015; B65D2251/0068; B65D2251/0078
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |