US3297232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner filter bag
Assignee: Studley Paper Co Inc
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Filing: 1964-11-27
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Granted: 1967-01-10
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 John J Fesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:57
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; B; B65; B65D; B65D31/00; Y; Y10; Y10S; Y10S55/00; Y10S55/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A BAG FORMED OF A BLANK OF SHEET MATERIAL FOLDED TO DEFINE A FRONT WALL, A REAR WALL AND OPPOSING SIDES, SAID BAG BEING CLOSED AT ONE END THEREOF, EACH OF SAID WALLS HAVING MEANS FOR INCREASING THE WIDTHWISE DIMENSION THEREOF, SAID MEANS COMPRISING PLEATS DEFINED IN EACH OF SAID WALLS AND EXTENDING LONGITUDINALLY THEREOF, SAID PLEATS BEING MOVABLE TRANSVERSELY OF THE RESPECTIVE WALLS TO INCREASE THE SURFACES THEREOF, SAID PLEATS EXTENDING WITHOUT DEFORMATION INTO SAID CLOSED END AND BEING MOVABLE TRANSVERSELY OF SAID CLOSED END TO INCREASE THE AREA THEREOF.
Claim 2
Dependent Claim
91 words
A BAG FORMED OF A BLANK OF SHEET MATERIAL FOLDED TO DEFINE A FRONT WALL, A REAR WALL AND OPPOSING SIDES, SAID BAG BEING CLOSED AT ONE END THEREOF, EACH OF SAID WALLS HAVING MEANS FOR INCREASING THE WIDTHWISE DIMENSION THEREOF, SAID MEANS COMPRISING PLEATS DEFINED IN EACH OF SAID WALLS AND EXTENDING LONGITUDINALLY THEREOF, SAID PLEATS BEING MOVABLE TRANSVERSELY OF THE RESPECTIVE WALLS TO INCREASE THE SURFACES THEREOF, SAID PLEATS EXTENDING WITHOUT DEFORMATION INTO SAID CLOSED END AND BEING MOVABLE TRANSVERSELY OF SAID CLOSED END TO INCREASE THE AREA THEREOF.
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) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |