Patent US3293047A successfully refreshed from Google Patents.
US3293047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkenyl aromatic resinous packaging
Assignee: Dow Chemical Co
•
Filing: 1963-06-20
•
Granted: 1966-12-20
•
Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Pfister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:00
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN AN ALKENYL AROMATIC RESINOUS RIGID CONTAINER HAVING A GENERALLY CIRCULAR OPENING, A CYLINDRICAL CONFIGURATION ADJACENT TO SAID OPENING, THE OUTER PORTION OF THE CYLINDRICAL PORTION OF SAID CONTAINER BEING PROVIDED WITH A PLURALITY OF THREAD PORTIONS ADAPTED TO ENGAGE INTERNALLY PROJECTING LUGS ON A MATING CLOSURE, SAID THREAD PORTIONS AND LUGS SO CONSTRUCTED AND ARRANGED SO AS TO PERMIT RELEASE OF THE CLOSURE FROM THE CONTAINER BY A RELATIVE ROTATION OF UP TO ABOUT 90*, THE IMPROVEMENT WHICH COMPRISES PROVIDING THE THREAD PORTIONS WITH A LUG ENGAGING SURFACE DISPOSED AT A ANGLE OF UP TO 10* AS MEASURED FROM A PLANE GENERALLY PARALLEL TO THE OPENING OF THE CONTAINER AND IN A RADIALLY OUTWARD DIRECTION.
Claim 2
Dependent Claim
116 words
IN AN ALKENYL AROMATIC RESINOUS RIGID CONTAINER HAVING A GENERALLY CIRCULAR OPENING, A CYLINDRICAL CONFIGURATION ADJACENT TO SAID OPENING, THE OUTER PORTION OF THE CYLINDRICAL PORTION OF SAID CONTAINER BEING PROVIDED WITH A PLURALITY OF THREAD PORTIONS ADAPTED TO ENGAGE INTERNALLY PROJECTING LUGS ON A MATING CLOSURE, SAID THREAD PORTIONS AND LUGS SO CONSTRUCTED AND ARRANGED SO AS TO PERMIT RELEASE OF THE CLOSURE FROM THE CONTAINER BY A RELATIVE ROTATION OF UP TO ABOUT 90*, THE IMPROVEMENT WHICH COMPRISES PROVIDING THE THREAD PORTIONS WITH A LUG ENGAGING SURFACE DISPOSED AT A ANGLE OF UP TO 10* AS MEASURED FROM A PLANE GENERALLY PARALLEL TO THE OPENING OF THE CONTAINER AND IN A RADIALLY OUTWARD DIRECTION.
References Cited (Backward Citations)
US1676023A
Cited
US1841597A
Cited
US2403131A
Cited
US2617553A
Cited
US2661966A
Cited
US2640626A
Cited
US2876926A
Cited
US2950033A
Cited
US2965496A
Cited
US2965256A
Cited
US3088830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |