US3880312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle with depending support tab
Assignee: Phillips Petroleum Co
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Filing: 1974-01-31
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Granted: 1975-04-29
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Expires: 1994-01-31
Abstract
Abstract An open end tubular parison is heated to orientation temperature, stretched longitudinally, and placed in a molding zone. One end of the parison is flattened to seal and form a tab in the end thereof and small gripping means are simultaneously embedded in the tab in alternate arrangement from both sides thereof. The parison is sheared adjacent the tab, which remains as part of the final product, and the parison is blow molded while the sealed parison is restrained from separating with the gripping means to form an oriented article with a short depending tab.
Inventors
- 👤 Dixie E Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:55
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/08; B29C49/10; B29C49/14; B29C49/42; B29C49/48; B29C49/4802; B29C49/4817
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
28 words
A biaxially oriented thermoplastic container having a short depending tab on the bottom surface thereof, said tab having a plurality of identations alternately spaced on either side thereof.
Claim 2
Dependent Claim
28 words
A biaxially oriented thermoplastic container having a short depending tab on the bottom surface thereof, said tab having a plurality of identations alternately spaced on either side thereof.
Claim 3
Dependent Claim
15 words
An article according to claim 1 wherein said tab has a thickness of 20-50 mils.
Claim 4
Dependent Claim
11 words
An article according to claim 1 wherein said thermoplastic is polypropylene.
Claim 5
Dependent Claim
17 words
An article according to claim 1 wherein said tab has a height of 20 to 140 mils.
Claim 6
Dependent Claim
21 words
An article according to claim 1 in combination with a holder having gripping jaws with protuberances which fit into said identations.
Claim 7
Dependent Claim
33 words
An article according to claim 5 wherein said tab is within a recess in a bottom of said container so that said container can set flat prior to being attached to said holder.
Claim 8
Dependent Claim
20 words
An article according to claim 6 in the form of a bottle for holding fluid while in an upside-down condition.
References Cited (Backward Citations)
US3215299A
Cited
US3202324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |