US3062220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug for removing deleterious products of combustion from tobacco smoke
Assignee: Individual
•
Filing: 1959-04-22
•
Granted: 1962-11-06
•
Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 Abe R Brothers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:16
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2511898A
Cited
CA560624A
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GB522663A
Cited
US2253463A
Cited
US2389104A
Cited
US2387381A
Cited
US2711743A
Cited
US2764513A
Cited
US2728346A
Cited
US2954779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |