US3081777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cigarette filter
Assignee: Individual
•
Filing: 1959-06-22
•
Granted: 1963-03-19
•
Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Sipos Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:29
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191107227A
Cited
CH189399A
Cited
US2354388A
Cited
US2387381A
Cited
US2764513A
Cited
US2728346A
Cited
US2819720A
Cited
US2827903A
Cited
US2954035A
Cited
US3038477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |