US3409023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of puffing tobacco stems by microwave energy
Assignee: Philip Morris USA Inc
•
Filing: 1965-12-17
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Granted: 1968-11-05
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Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Burde Roger Zygmunt De La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:11
CPC Classifications
A; A24; A24B; A24B3/00; A24B3/18; A24B3/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2739599A
Cited
GB947280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |