Patent EP0126914A2 successfully refreshed from Google Patents.
US4872571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container pour spout with peelable tamper-proof seal
Assignee: Individual
•
Filing: 1989-01-23
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Granted: 1989-10-10
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Expires: 2009-01-23
Abstract
Abstract A container having an externally threaded pour spout on which an internally threaded cap is screwed. A tamper-proof, removable, membrane-like or diaphragm-like closure for the spout is secured to the circumferential lip of the spout with a peelable seal. The membrane-like closure has an elongated pull tab extending therefrom, by pulling on which the closure may be peeled off the end of the spout. The external threads on the spout are interrupted so as to provide a groove in which the pull tab resides out of engagement or interference with the external and internal threads on the spout and cap.
Inventors
- 👤 Ross E. Crecelius
- 👤 Patrick E. O'Neal
- 👤 David B. Crecelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:27
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/18; B65D51/20; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0015; B65D2251/0068; B65D2251/0093; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2041; B65D2577/205
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
109 words
In a container comprising a pour spout through which flowable contents may be poured, said spout having exterior threads, an internally threaded cap screwed onto said spout, and a membrane-like closure secured by a seal over the circumferential lip of said spout, the improvement which comprises, said membrane-like closure having an elongated pull tab by means which said membrane-like closure can be peeled off said lip, and said external threads on said spout being interrupted in a direction parallel to the axis of said spout so as to provide in said external threads a groove in which said tab may reside when said cap is screwed on said spout.
Claim 2
Dependent Claim
109 words
In a container comprising a pour spout through which flowable contents may be poured, said spout having exterior threads, an internally threaded cap screwed onto said spout, and a membrane-like closure secured by a seal over the circumferential lip of said spout, the improvement which comprises, said membrane-like closure having an elongated pull tab by means which said membrane-like closure can be peeled off said lip, and said external threads on said spout being interrupted in a direction parallel to the axis of said spout so as to provide in said external threads a groove in which said tab may reside when said cap is screwed on said spout.
Claim 3
Dependent Claim
28 words
The improvement call for in claim 1, wherein said pull tab is secured to said spout with a seal except for a free end portion of said tab.
References Cited (Backward Citations)
US4605136A
Cited
US4789082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |