US3141601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag top closure
Assignee: Bemis Brothers Bag Co
•
Filing: 1960-09-06
•
Granted: 1964-07-21
•
Expires: 1980-09-06
Abstract
No abstract record available.
Inventors
- 👤 Richard H Ayres
- 👤 Harold K Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:18
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1691
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
A CLOSED FLEXIBLE WALLED BAG ENCLOSING MATERIAL CONTAINED THEREIN, THE TOP WALLS OF SAID BAG BEING PRESSED TOGETHER IN FLATWISE RELATION, THE INSIDE SURFACES OF SAID TOP WALLS OF SAID BAG BEING THERMOSENSITIVE, SAID FLATTENED BAG TOP WALLS BEING ADHESIVELY SECURED TOGETHER ALONG A PLURALITY OF RELATIVELY WIDE FUSION BONDING AREAS ADJACENT THE TOP EDGE OF THE BAG AND EXTENDING THE WIDTH OF THE BAG, AND A STRIP OF THIN FLEXIBLE THERMOSENSITIVE TAPE EXTENDING OVER AND FURTHER SEALING THE FLATTENED TOP END OF SAID BAG, SAID BAG TOP AND TAPE BEING ADHESIVELY SECURED TOGETHER BY A PLURALITY OF RELATIVELY WIDE PARALLEL VERTICALLY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |