US3338461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers
Assignee: Cookson Sheet Metal Developments Ltd
•
Filing: 1966-01-21
•
Granted: 1967-08-29
•
Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 Cookson William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:10
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/52; B65D17/521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A CONTAINER WALL FORMED A RELATIVELY THIN SHEET MATERIAL, OPENING MEANS COMPRISING A RUNWAY; A SLIDER OPENING DEVICE ENGAGEABLE THEREWITH TO SLIDE THEREALONG; A PORTION OF THE SHEET MATERIAL WEAKENED ALONG A LINE; AND MEANS PROVIDED ON THE SLIDER OPENING DEVICE FOR PARTING THE MATERIAL OF THE WALL ALONG THE WEAKENED LINE AS THE SLIDER OPENING DEVICE IS SLIDE ALONG THE RUNWAY.
Claim 2
Dependent Claim
63 words
IN A CONTAINER WALL FORMED A RELATIVELY THIN SHEET MATERIAL, OPENING MEANS COMPRISING A RUNWAY; A SLIDER OPENING DEVICE ENGAGEABLE THEREWITH TO SLIDE THEREALONG; A PORTION OF THE SHEET MATERIAL WEAKENED ALONG A LINE; AND MEANS PROVIDED ON THE SLIDER OPENING DEVICE FOR PARTING THE MATERIAL OF THE WALL ALONG THE WEAKENED LINE AS THE SLIDER OPENING DEVICE IS SLIDE ALONG THE RUNWAY.
References Cited (Backward Citations)
US3176871A
Cited
US3250424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |