US3368707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential pressure formed plastic container cap or closure
Assignee: Brown Machine Company of Michigan Inc
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Filing: 1966-08-25
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Granted: 1968-02-13
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Expires: 1986-08-25
Abstract
No abstract record available.
Inventors
- 👤 Robert T Johnson
- 👤 Gaylord W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:07
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/10; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48; B65D41/485; B65D2401/00; B65D2401/15; B65D2401/35
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A THIN-WALLED PLASTIC CONTAINER CAP THERMOFORMED IN AN EXTRUDED PLASTIC SHEET COMPRISING: A TOP WALL HAVING A SURROUNDING DEPENDENT UNSCORED SKIRT ADAPTED TO FIT ON THE NECK OF A CONTAINER; AND A PROJECTING TAB PORTION EXTENDING FROM SAID SKIRT WITH ITS SIDE EDGES EXTENDING SUBSTANTIALLY IN ALIGNMENT WITH THE DIRECTION OF EXTRUSION OF SAID SHEET SO THAT THE TAB PORTION, WHEN LIFTED FROM THE SKIRT, TEARS A PORTION FROM THE SKIRT HAVING SUBSTANTIALLY PARALLEL EDGES EXTENDING SUBSTANTIALLY IN THE SAID DIRECTION OF SHEET EXTRUSION.
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |