US2821238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing selfigniting cigarettes
Assignee: Koerber & Co KG
•
Filing: 1955-11-22
•
Granted: 1958-01-28
•
Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Lakos Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:02
CPC Classifications
A; A24; A24D; A24D1/00; A24D1/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1074; Y10T156/12; Y10T156/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |