US3094083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bags
Assignee: Bemis Brothers Bag Co
•
Filing: 1961-02-13
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Granted: 1963-06-18
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Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Arnold N Weeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:09
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/645; B31B2155/00; B31B2160/00; B31B2160/10; B31B2170/00; B31B2170/20; B31B2170/204; Y; Y10; Y10S; Y10S206/00; Y10S206/82; Y10S55/00; Y10S55/05; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1013; Y10T156/1052; Y10T156/1084; Y10T428/00; Y10T428/24; Y10T428/24033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE METHOD OF MANUFACTURING PAPER BAGS WITH PLASTIC LINERS COMPRISING PROVIDING A LENGTH OF HEAT-SEAL ABLE PLASTIC TUBING WITH TRANSVERSE HEAT SEAL SPACED AT INTERVALS ALONG THE LENGTH OF THE TUBING, FORMING A PAPER WEB INTO A TUBE AROUND THE PLASTIC TUBING, SEGMENTING THE RESULTANT COMPOSITE TUBING INTO INDIVIDUAL BAG LENGTHS ON TRANSVERSE LINES SPACED FROM BUT ADJACENT TO THE TRANSVERSE HEAT SEALS AND LOCATED AT INTERVALS ALONG THE LENGTH OF SAID COMPOSITE TUBING, WHEREBY EACH BAG LENGTH COMPRISES A PLASTIC LINER WITHIN A PAPER TUBE WITH A TRANSVERSE HEAT SEAL ACROSS THE PLASTIC LINER SPACED FROM AND ADJACENT ONE END OF THE BAG LENGTH, AND STITCHING EACH BAG LENGTH ACROSS THE WIDTH THEREOF ALONG A LINE BETWEEN SAID ONE END OF THE BAG LENGTH AND SAID HEAT SEAL.
Claim 2
Independent Claim
129 words
THE METHOD OF MANUFACTURING PAPER BAGS WITH PLASTIC LINERS COMPRISING PROVIDING A LENGTH OF HEAT-SEAL ABLE PLASTIC TUBING WITH TRANSVERSE HEAT SEAL SPACED AT INTERVALS ALONG THE LENGTH OF THE TUBING, FORMING A PAPER WEB INTO A TUBE AROUND THE PLASTIC TUBING, SEGMENTING THE RESULTANT COMPOSITE TUBING INTO INDIVIDUAL BAG LENGTHS ON TRANSVERSE LINES SPACED FROM BUT ADJACENT TO THE TRANSVERSE HEAT SEALS AND LOCATED AT INTERVALS ALONG THE LENGTH OF SAID COMPOSITE TUBING, WHEREBY EACH BAG LENGTH COMPRISES A PLASTIC LINER WITHIN A PAPER TUBE WITH A TRANSVERSE HEAT SEAL ACROSS THE PLASTIC LINER SPACED FROM AND ADJACENT ONE END OF THE BAG LENGTH, AND STITCHING EACH BAG LENGTH ACROSS THE WIDTH THEREOF ALONG A LINE BETWEEN SAID ONE END OF THE BAG LENGTH AND SAID HEAT SEAL.
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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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |