Patent US3273322A successfully refreshed from Google Patents.
US3273322A
Expired / Lapsed
US
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Disposable vacuum cleaner bag
Assignee: Studley Paper Co Inc
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Filing: 1962-12-04
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Granted: 1966-09-20
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 John J Fesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:15
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; B; B31; B31B; B31B70/00; B31B70/14; B31B70/16; B31B2241/00; B31B2241/008; Y; Y10; Y10S; Y10S55/00; Y10S55/02; Y10S55/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA503802A
Cited
US1859861A
Cited
US2225389A
Cited
US2566275A
Cited
US2641333A
Cited
US2776726A
Cited
US3016983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |