US3272094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered fiber drum and method of making the same
Assignee: Greif Inc
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Filing: 1964-01-23
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Granted: 1966-09-13
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Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert L Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:00
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D55/06; B65D55/08; B65D55/0818; B65D3/00; B65D3/02; B65D45/00; B65D45/02; B65D45/16; B65D45/18; B31; B31B; B31B50/00; B31B50/59; B31B50/594; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
THE METHOD OF FORMING A TAPERED FIBER SHELL FOR USE IN A TAPERED CONTAINER BODY SUITABLE FOR STACKING IN NESTED RELATION WITH OTHER SIMILAR CONTAINER BODIES WHICH COMPRISES: FIRST FORMING A TUBULAR SHELL OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SIZE AND SHAPE FROM END TO END FROM CONVOLUTELY WOUND LAYERS OF FIBROUS MATERIAL LAMINATED TOGETHER AND THEN WHILE THE PAPER IS IN STRETCHABLE DEFORMABLE CONDITION PLACING ONE SURFACE OF THE SHELL IMMEDIATELY ADJACENT A TAPERED FORM WHILE APPLYING A FORCE BETWEEN THE FORM AND THE SHELL TO CAUSE THE SHELL TO CONFORM IN SHAPE TO THE FORM AND ASSUME A TAPERED CONFIGURATION INCREASING GRADUALLY AND SUBSTANTIALLY UNIFORMLY IN CROSS-SECTIONAL DIMENSION FROM ONE END TO THE OTHER.
Claim 2
Independent Claim
114 words
THE METHOD OF FORMING A TAPERED FIBER SHELL FOR USE IN A TAPERED CONTAINER BODY SUITABLE FOR STACKING IN NESTED RELATION WITH OTHER SIMILAR CONTAINER BODIES WHICH COMPRISES: FIRST FORMING A TUBULAR SHELL OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SIZE AND SHAPE FROM END TO END FROM CONVOLUTELY WOUND LAYERS OF FIBROUS MATERIAL LAMINATED TOGETHER AND THEN WHILE THE PAPER IS IN STRETCHABLE DEFORMABLE CONDITION PLACING ONE SURFACE OF THE SHELL IMMEDIATELY ADJACENT A TAPERED FORM WHILE APPLYING A FORCE BETWEEN THE FORM AND THE SHELL TO CAUSE THE SHELL TO CONFORM IN SHAPE TO THE FORM AND ASSUME A TAPERED CONFIGURATION INCREASING GRADUALLY AND SUBSTANTIALLY UNIFORMLY IN CROSS-SECTIONAL DIMENSION FROM ONE END TO THE OTHER.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |