US3392906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner filter bag
Assignee: Studley Paper Co Inc
•
Filing: 1967-04-11
•
Granted: 1968-07-16
•
Expires: 1987-04-11
Abstract
No abstract record available.
Inventors
- 👤 John J Fesco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; A47L9/1436; Y; Y10; Y10S; Y10S55/00; Y10S55/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3245605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |