US3457707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner filter bag
Assignee: Studley Paper Co Inc
•
Filing: 1965-03-30
•
Granted: 1969-07-29
•
Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 John J Fesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:56
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; Y; Y10; Y10S; Y10S55/00; Y10S55/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A VACUUM CLEANER FILTER BAG COMPRISING AN ELONGATED BAG BODY HAVING AN OPEN TOP AND A CLOSED BOTTOM, A COLLAR PROVIDED AT SAID OPEN TOP,SAID BAG BODY HAVING LONGITUDINAL PLEATS PROVIDED IN THE SIDES THEREOF, SAID PLEATS BEING MAINTAINED IN OPEN CONDITION ADJACENT SAID COLLAR AND IN CLOSED CONDITION, ADJACENT SAID CLOSED BOTTOM, THEREBY IMPARTING TO SAID BAG BODY AN INWARDLY TAPERING CONFIGURATION FROM SAID COLLAR TO SAID CLOSED BOTTOM, SAID COLLAR HAVING A PERIPHERAL LEDGE PROVIDED WITH A DEPENDENT SKIRT DISPOSED WITH SAID BAG BODY AT SAID OPEN TOP, SAID BAG BODY BEING SECURED TO SAID SKIRT.
Claim 2
Dependent Claim
98 words
A VACUUM CLEANER FILTER BAG COMPRISING AN ELONGATED BAG BODY HAVING AN OPEN TOP AND A CLOSED BOTTOM, A COLLAR PROVIDED AT SAID OPEN TOP,SAID BAG BODY HAVING LONGITUDINAL PLEATS PROVIDED IN THE SIDES THEREOF, SAID PLEATS BEING MAINTAINED IN OPEN CONDITION ADJACENT SAID COLLAR AND IN CLOSED CONDITION, ADJACENT SAID CLOSED BOTTOM, THEREBY IMPARTING TO SAID BAG BODY AN INWARDLY TAPERING CONFIGURATION FROM SAID COLLAR TO SAID CLOSED BOTTOM, SAID COLLAR HAVING A PERIPHERAL LEDGE PROVIDED WITH A DEPENDENT SKIRT DISPOSED WITH SAID BAG BODY AT SAID OPEN TOP, SAID BAG BODY BEING SECURED TO SAID SKIRT.
References Cited (Backward Citations)
US1835093A
Cited
CH169328A
Cited
US2418371A
Cited
GB575877A
Cited
US2737263A
Cited
US2975863A
Cited
US3176450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |