US3352085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of wrapping articles in polyolefin material
Assignee: Fort James Corp
•
Filing: 1965-06-24
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Granted: 1967-11-14
•
Expires: 1985-06-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Pantenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:10
CPC Classifications
B; B65; B65B; B65B51/00; Y; Y10; Y10S; Y10S383/00; Y10S383/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A PROCESS OF WRAPPING AN ARTICLE WHICH COMPRISES PLACING THE ARTICLE ON A THIN SHEET OF STRETCHABLE POLYOLEFIN FILM, ENCIRCLING THE ARTICLE WITH THE SHEET, CLAMPING EACH OF THE TWO OPPOSITE ENDS OF THE SHEET ENCIRCLED AROUND THE ARTICLE BY A PAIR OF GRIPPING JAWS HAVING ON THE WORK SURFACE THEREOF A STRONGLY ADHERENT, ROUGH METALLIC COATING COMPRISING A MAJOR PROPORTION OF TUNGSTEN CARBIDE, SAID SURFACE BEING CHARACTERIZED BY A ROUGHNESS IN THE RANGE OF FROM ABOUT 200 TO ABOUT 500 MICROINCHES R.M.S. AND HIGH WEAR RESISTANCE, STRETCHING AND SIMULTANEOUSLY TWISTING THE CLAMPED ENDS OF THE SHEET IN THE SAME DIRECTION BEYOND THE YIELD POINT BUT PRIOR TO THE BREAK POINT OF THE POLYOLEFIN FILM, WHILE MAINTAINING THE SHEET AT AMBIENT ROOM TEMPERATURE, THERBY PRODUCING A WRAPPED ARTICLE HAVING A PERMANENTLY TWISTED CLOSURE AT EACH END.
Claim 2
Dependent Claim
136 words
A PROCESS OF WRAPPING AN ARTICLE WHICH COMPRISES PLACING THE ARTICLE ON A THIN SHEET OF STRETCHABLE POLYOLEFIN FILM, ENCIRCLING THE ARTICLE WITH THE SHEET, CLAMPING EACH OF THE TWO OPPOSITE ENDS OF THE SHEET ENCIRCLED AROUND THE ARTICLE BY A PAIR OF GRIPPING JAWS HAVING ON THE WORK SURFACE THEREOF A STRONGLY ADHERENT, ROUGH METALLIC COATING COMPRISING A MAJOR PROPORTION OF TUNGSTEN CARBIDE, SAID SURFACE BEING CHARACTERIZED BY A ROUGHNESS IN THE RANGE OF FROM ABOUT 200 TO ABOUT 500 MICROINCHES R.M.S. AND HIGH WEAR RESISTANCE, STRETCHING AND SIMULTANEOUSLY TWISTING THE CLAMPED ENDS OF THE SHEET IN THE SAME DIRECTION BEYOND THE YIELD POINT BUT PRIOR TO THE BREAK POINT OF THE POLYOLEFIN FILM, WHILE MAINTAINING THE SHEET AT AMBIENT ROOM TEMPERATURE, THERBY PRODUCING A WRAPPED ARTICLE HAVING A PERMANENTLY TWISTED CLOSURE AT EACH END.
References Cited (Backward Citations)
US1815261A
Cited
US2009511A
Cited
US2346613A
Cited
US2368624A
Cited
US2598073A
Cited
US2934873A
Cited
US3146111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |