US3302856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers
Assignee: Phillips Petroleum Co
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Filing: 1965-04-05
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Granted: 1967-02-07
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Expires: 1985-04-05
Abstract
No abstract record available.
Inventors
- 👤 Stanley P Thompson
- 👤 Robert J Martinovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:22
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5827; B65D75/5833; B65D75/5838; B65D75/28; B65D75/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A PLASTIC FILM COVER COMPRISING AN UNPERFORATED ORIENTED PLASTIC FILM FOR COVERING AT LEAST ONE CONTAINER OPENING, AT LEAST ONE PLASTIC TEAR TAB HAVING ONE END INTIMATELY ATTACHED AT APPROXIMATELY THE EDGE OF SAID FILM AND THE OTHER END FREE TO BE GRASPED, THE AREA OF CONTACT BETWEEN SAID TEAR TAB AND SAID FILM BEING OF AN AREA SUBSTANTIALLY SMALLER THAN THE DESIRED TORN AREA FOR SAID PLASTIC WHEN OPENED AND BEING OF SUCH A CONFIGURATION THAT IT IS POINTED AT THE SPOT AT WHICH TEARING OF THE FILM WILL FIRST BE INTIATED WHEN THE FREE END OF SAID TAB IS PULLED IN THE DIRECTION OF SAID POINTED PART OF SAID CONTACT AREA, THE ORIENTATION OF SAID FREE END OF SAID PLASTIC TEAR TAB RELATIVE TO SAID POINTED AREA OF SAID ATTACHED END AND SAID FILM BEING SUCH THAT THE FREE END OF SAID TAB MUST BE PULLED IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE ORIENTATION DIRECTION OF SAID FILM, THE OUTER EDGES OF THE AREA OF CONTACT BETWEEN SAID TEAR TAB AND SAID FILM BEING UNPERFORATED AND THEREFORE ALLOWING SAID PLASTIC FILM TO REMAIN UNPERFORATED UNTIL THE COVER IS OPENED.
Claim 2
Dependent Claim
191 words
A PLASTIC FILM COVER COMPRISING AN UNPERFORATED ORIENTED PLASTIC FILM FOR COVERING AT LEAST ONE CONTAINER OPENING, AT LEAST ONE PLASTIC TEAR TAB HAVING ONE END INTIMATELY ATTACHED AT APPROXIMATELY THE EDGE OF SAID FILM AND THE OTHER END FREE TO BE GRASPED, THE AREA OF CONTACT BETWEEN SAID TEAR TAB AND SAID FILM BEING OF AN AREA SUBSTANTIALLY SMALLER THAN THE DESIRED TORN AREA FOR SAID PLASTIC WHEN OPENED AND BEING OF SUCH A CONFIGURATION THAT IT IS POINTED AT THE SPOT AT WHICH TEARING OF THE FILM WILL FIRST BE INTIATED WHEN THE FREE END OF SAID TAB IS PULLED IN THE DIRECTION OF SAID POINTED PART OF SAID CONTACT AREA, THE ORIENTATION OF SAID FREE END OF SAID PLASTIC TEAR TAB RELATIVE TO SAID POINTED AREA OF SAID ATTACHED END AND SAID FILM BEING SUCH THAT THE FREE END OF SAID TAB MUST BE PULLED IN A DIRECTION SUBSTANTIALLY PARALLEL TO THE ORIENTATION DIRECTION OF SAID FILM, THE OUTER EDGES OF THE AREA OF CONTACT BETWEEN SAID TEAR TAB AND SAID FILM BEING UNPERFORATED AND THEREFORE ALLOWING SAID PLASTIC FILM TO REMAIN UNPERFORATED UNTIL THE COVER IS OPENED.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |