US3122145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco smoke filtering
Assignee: Individual
•
Filing: 1962-04-23
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Granted: 1964-02-25
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Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Louis Stanley E St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:28
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/048; A24F; A24F13/00; A24F13/02; A24F13/04; A24F13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A SMOKING FILTER COMPRISING: A CORE FORMED OF A SEVERED LENGTH OF MARSH PLANT STEM APPROXIMATING THE LENGTH OF THE FILTER, SAID CORE HAVING AT LEAST ONE BORE EXTENDING LONGITUDINALLY THEREOF AND BEING SATURATED WITH LIQUID, A LIQUID IMPERVIOUS CAPSULE ENCLOSING SAID CORE, SAID CAPSULE INCLUDING A TUBULAR BODY AND A CLOSURE MEMBER AT EACH END THEREOF, AND MEANS FOR OPENING THE ENDS OF SAID CAPSULE, SAID MEANS INCLUDING A DRAW STRING EXTENDING THROUGH SAID BORE CONNECTED TO SAID CLOSURE MEMBERS.
Claim 2
Dependent Claim
81 words
A SMOKING FILTER COMPRISING: A CORE FORMED OF A SEVERED LENGTH OF MARSH PLANT STEM APPROXIMATING THE LENGTH OF THE FILTER, SAID CORE HAVING AT LEAST ONE BORE EXTENDING LONGITUDINALLY THEREOF AND BEING SATURATED WITH LIQUID, A LIQUID IMPERVIOUS CAPSULE ENCLOSING SAID CORE, SAID CAPSULE INCLUDING A TUBULAR BODY AND A CLOSURE MEMBER AT EACH END THEREOF, AND MEANS FOR OPENING THE ENDS OF SAID CAPSULE, SAID MEANS INCLUDING A DRAW STRING EXTENDING THROUGH SAID BORE CONNECTED TO SAID CLOSURE MEMBERS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |