US2827903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self cooling filter cigarette
Assignee: Individual
•
Filing: 1956-02-13
•
Granted: 1958-03-25
•
Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Niederman Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A CIGARETTE HAVING A SUPPLY OF TOBACCO AND COMBUSTIBLE WRAPPER ENCLOSING SAID TOBACCO SUPPLY, A FILTERING MEDIUM DISPOSED WITHIN A WRAPPER AT ONE END THERETO, AND A HEAT RADIATING UNIT DISPOSED BETWEEN THE TOBACCO SUPPLY AND THE FILER AND PROVIDED WITH A SERIES OF METAL TUBES FORMING NORMALLY OPEN SMOKE PASSAGES, SAID TUBES BEING IN CLOSD RELATION TO THE WRAPPER.
Claim 2
Dependent Claim
60 words
A CIGARETTE HAVING A SUPPLY OF TOBACCO AND COMBUSTIBLE WRAPPER ENCLOSING SAID TOBACCO SUPPLY, A FILTERING MEDIUM DISPOSED WITHIN A WRAPPER AT ONE END THERETO, AND A HEAT RADIATING UNIT DISPOSED BETWEEN THE TOBACCO SUPPLY AND THE FILER AND PROVIDED WITH A SERIES OF METAL TUBES FORMING NORMALLY OPEN SMOKE PASSAGES, SAID TUBES BEING IN CLOSD RELATION TO THE WRAPPER.
References Cited (Backward Citations)
US1605059A
Cited
US1554353A
Cited
GB377147A
Cited
US1983926A
Cited
US2185598A
Cited
US2669995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |