US3100577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linerless venting closure
Assignee: Armstrong World Industries Inc
•
Filing: 1962-03-14
•
Granted: 1963-08-13
•
Expires: 1982-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Miller
- 👤 Gerald L Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:39
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D51/00; B65D51/16; B65D51/1605; B65D51/1622
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A PACKAGE COMPRISING A CONTAINER AND CAP IN LIQUID-TIGHT SEALING RELATIONSHIP, THE ELEMENTS COMPRISING A RESILIENT PLASTIC CONTAINER HAVING A FLAT SEALING SURFACE ON A PLANE SUBSTANTIALLY NORMAL TO THE LONGITUDINAL AXIS OF THE CONTAINER, A CAP ADAPTED TO FIT IN SEALING RELATIONSHIP WITH SAID CONTAINER, SAID CAP BEING PROVIDED WITH A SPIRAL GROOVE ON THE UNDERSIDE IN THE AREA LYING IN JUXTAPOSITION TO SAID SEALING SURFACE OF THE CONTAINER, SAID SPIRAL GROOVE BEING OF A PITCH TO PROVIDE AT LEAST ONE FULL 360* TURN IN ENGAGEMENT WITH THE SEALING SURFACE OF THE CONTAINER.
Claim 2
Dependent Claim
95 words
IN A PACKAGE COMPRISING A CONTAINER AND CAP IN LIQUID-TIGHT SEALING RELATIONSHIP, THE ELEMENTS COMPRISING A RESILIENT PLASTIC CONTAINER HAVING A FLAT SEALING SURFACE ON A PLANE SUBSTANTIALLY NORMAL TO THE LONGITUDINAL AXIS OF THE CONTAINER, A CAP ADAPTED TO FIT IN SEALING RELATIONSHIP WITH SAID CONTAINER, SAID CAP BEING PROVIDED WITH A SPIRAL GROOVE ON THE UNDERSIDE IN THE AREA LYING IN JUXTAPOSITION TO SAID SEALING SURFACE OF THE CONTAINER, SAID SPIRAL GROOVE BEING OF A PITCH TO PROVIDE AT LEAST ONE FULL 360* TURN IN ENGAGEMENT WITH THE SEALING SURFACE OF THE CONTAINER.
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |