Patent US3148598A successfully refreshed from Google Patents.
US3148598A
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Making bags with enclosed stiffener at top
Assignee: Equitable Paper Bag Co Inc
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Filing: 1961-11-30
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Granted: 1964-09-15
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Expires: 1981-11-30
Abstract
No abstract record available.
Inventors
- 👤 John S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:25
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/008; B31B2155/00; B31B2160/00; B31B2160/10; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1011; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A BAG-MAKING MACHINE IN WHICH A PLASTIC WEB IS FED TO THE MACHINE AND PROGRESSIVELY FOLDED WITH A REINFORCING STRIP FED INTO THE FOLD, SEALING MEANS THAT SEAL THE FOLDED WEB LONGITUDINALLY JUST BEYOND THAT EDGE OF THE STRIP REMOTE FROM THE FOLD TO FORM A SEPARATE BAG COMPARTMENT FOR THE STRIP AND MEANS FOR HOLDING THE OTHER EDGE OF THE STRIP ADJACENT TO THE FOLD INCLUDING A GUIDE SUPPORTED BEYOND THE REGION OF FOLDING OF THE WEB BUT AHEAD OF THE SEALING MEANS AND EXTENDING INWARDLY BETWEEN THE TWO LAYERS OF THE FOLDED WEB AND TO SAID STRIP, THE GUIDE HAVING SURFACES THAT EXTEND ACROSS A PORTION OF THE WIDTH OF THE UPPER AND LOWER SURFACES OF THE STRIP AND A SURFACE THAT BEARS AGAINST THE EDGE OF THE STRIP REMOTE FROM THE FOLD, SAID GUIDE BEING LOCATED IN POSI-
Claim 2
Dependent Claim
142 words
IN A BAG-MAKING MACHINE IN WHICH A PLASTIC WEB IS FED TO THE MACHINE AND PROGRESSIVELY FOLDED WITH A REINFORCING STRIP FED INTO THE FOLD, SEALING MEANS THAT SEAL THE FOLDED WEB LONGITUDINALLY JUST BEYOND THAT EDGE OF THE STRIP REMOTE FROM THE FOLD TO FORM A SEPARATE BAG COMPARTMENT FOR THE STRIP AND MEANS FOR HOLDING THE OTHER EDGE OF THE STRIP ADJACENT TO THE FOLD INCLUDING A GUIDE SUPPORTED BEYOND THE REGION OF FOLDING OF THE WEB BUT AHEAD OF THE SEALING MEANS AND EXTENDING INWARDLY BETWEEN THE TWO LAYERS OF THE FOLDED WEB AND TO SAID STRIP, THE GUIDE HAVING SURFACES THAT EXTEND ACROSS A PORTION OF THE WIDTH OF THE UPPER AND LOWER SURFACES OF THE STRIP AND A SURFACE THAT BEARS AGAINST THE EDGE OF THE STRIP REMOTE FROM THE FOLD, SAID GUIDE BEING LOCATED IN POSI-
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |