US3133691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent for thermoplastic bag
Assignee: Millennium Petrochemicals Inc
•
Filing: 1962-10-30
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Granted: 1964-05-19
•
Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Herbert O Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN A HEAVY DUTY BAG OF THERMOPLASTIC MATERIAL: SAID BAG BEING FORMED OF A FIRST AND SECOND OPPOSING PANEL HAVING THREE EDGES THEREOF SEALED AND A FOURTH EDGE OPEN TO PERMIT FILLING OF SAID BAG; RESPECTIVE ENT OPENING IN SAID PANELS ADJACENT THE EDGE OF SAID BAG OPPOSITE SAID OPEN EDGE; SAID VENT OPENINGS BEING ENCLOSED BY A CHAN
Claim 2
Dependent Claim
59 words
IN A HEAVY DUTY BAG OF THERMOPLASTIC MATERIAL: SAID BAG BEING FORMED OF A FIRST AND SECOND OPPOSING PANEL HAVING THREE EDGES THEREOF SEALED AND A FOURTH EDGE OPEN TO PERMIT FILLING OF SAID BAG; RESPECTIVE ENT OPENING IN SAID PANELS ADJACENT THE EDGE OF SAID BAG OPPOSITE SAID OPEN EDGE; SAID VENT OPENINGS BEING ENCLOSED BY A CHAN
References Cited (Backward Citations)
US2361344A
Cited
US2997224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |