US3330100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner filter bag
Assignee: Studley Paper Co Inc
•
Filing: 1964-04-08
•
Granted: 1967-07-11
•
Expires: 1984-04-08
Abstract
No abstract record available.
Inventors
- 👤 John J Fesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:26
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; A47L9/1436; A47L9/1445; A47L9/1454; Y; Y10; Y10S; Y10S55/00; Y10S55/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A FILTER BAG ASSEMBLY FOR A VACUUM CLEANER HAVING AN AIR CONDUIT ASSOCIATED THEREWITH COMPRISING A BAG HAVING AN END WALL, SAID END WALL HAVING AN APERTURE DEFINED THEREIN, A COLLAR HAVING AN APERTURE DEFINED THEREIN, SAID COLLAR MOUNTED ON SAID END WALL IN A POSITION ALIGNING SAID COLLAR APERTURE SUBSTANT IALLY IN REGISTER WITH SAID END WALL''S APERTURE, A BENDABLE RESILIENT PLANAR VALVE MEMBER ADAPTED TO OPEN AND CLOSE SAID APERTURES, SAID RESILIENT MEMBER HAVING OPPOSING MARGINAL EDGES AND BEING MOUNTED BETWEEN SAID COLLAR AND SAID END WALL AND CONNECTED THERETO ALONG ONE OF SAID MARGINAL EDGES ONLY, SAID MEMBER BEING NORMALLY DISPOSED TO CLOSE BOTH OF SAID APERTURES AND BEING BENDABLE THROUGH THE APERTURE OF SAID END WALL INTO THE INTERIOR OF SAID BAG IN RESPONSE TO BENDING PRESSURE APPLIED THEREON BY
Claim 2
Dependent Claim
134 words
A FILTER BAG ASSEMBLY FOR A VACUUM CLEANER HAVING AN AIR CONDUIT ASSOCIATED THEREWITH COMPRISING A BAG HAVING AN END WALL, SAID END WALL HAVING AN APERTURE DEFINED THEREIN, A COLLAR HAVING AN APERTURE DEFINED THEREIN, SAID COLLAR MOUNTED ON SAID END WALL IN A POSITION ALIGNING SAID COLLAR APERTURE SUBSTANT IALLY IN REGISTER WITH SAID END WALL''S APERTURE, A BENDABLE RESILIENT PLANAR VALVE MEMBER ADAPTED TO OPEN AND CLOSE SAID APERTURES, SAID RESILIENT MEMBER HAVING OPPOSING MARGINAL EDGES AND BEING MOUNTED BETWEEN SAID COLLAR AND SAID END WALL AND CONNECTED THERETO ALONG ONE OF SAID MARGINAL EDGES ONLY, SAID MEMBER BEING NORMALLY DISPOSED TO CLOSE BOTH OF SAID APERTURES AND BEING BENDABLE THROUGH THE APERTURE OF SAID END WALL INTO THE INTERIOR OF SAID BAG IN RESPONSE TO BENDING PRESSURE APPLIED THEREON BY
References Cited (Backward Citations)
US2649926A
Cited
US2543556A
Cited
US2596807A
Cited
US2737263A
Cited
US2804166A
Cited
US2792076A
Cited
US2964128A
Cited
US2995205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |