US3053665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of infusion bags
Assignee: National Tea Packing Co Inc
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Filing: 1957-08-23
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Granted: 1962-09-11
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Expires: 1977-08-23
Abstract
No abstract record available.
Inventors
- 👤 Hans O Irmscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:48
CPC Classifications
B; B65; B65B; B65B29/00; B65B29/02; B65B29/04; B65B29/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN INFUSION BAG COMPRISING A TUBE OF SHEET MATERIAL, SAID TUBE BEING FOLDED TO FORM A TWO-COMPARTMENT BAG, THE BOTTOM OF THE BAG BEING INFOLDED PROVIDING A BAG BOTTOM EXPANSION PLEAT, THE SAID TOW COMPARTMETNS BEING CHARGED WITH AN INFUSION MATERIAL, MEANS UNITING THE TOPS OF THE COMPARTMENTS THEREBY PROVIDING THE BAG TOP, ONE END OF A STRING ATTACHED TO THE BAG TOP, THE SAID STRING ATTACHED BAG TOP BEING INFOLDED AND PROVIDING A BAG TOP EXPANSION PLEAT, A BAND OF STRIP MATERIAL WRAPPED ABOUT THE BAG, THE OTHER END OF THE STRING BEING ATTACHED TO THE MEETING EDGES OF THE BAND STRIP.
Claim 2
Dependent Claim
103 words
AN INFUSION BAG COMPRISING A TUBE OF SHEET MATERIAL, SAID TUBE BEING FOLDED TO FORM A TWO-COMPARTMENT BAG, THE BOTTOM OF THE BAG BEING INFOLDED PROVIDING A BAG BOTTOM EXPANSION PLEAT, THE SAID TOW COMPARTMETNS BEING CHARGED WITH AN INFUSION MATERIAL, MEANS UNITING THE TOPS OF THE COMPARTMENTS THEREBY PROVIDING THE BAG TOP, ONE END OF A STRING ATTACHED TO THE BAG TOP, THE SAID STRING ATTACHED BAG TOP BEING INFOLDED AND PROVIDING A BAG TOP EXPANSION PLEAT, A BAND OF STRIP MATERIAL WRAPPED ABOUT THE BAG, THE OTHER END OF THE STRING BEING ATTACHED TO THE MEETING EDGES OF THE BAND STRIP.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |