US2667157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke generator
Assignee: John E. Smith's Sons Co
•
Filing: 1949-03-21
•
Granted: 1954-01-26
•
Expires: 1969-03-21
Abstract
No abstract record available.
Inventors
- 👤 Vastola Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:09
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/044; A23B4/052; A23B4/0523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US219232A
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US441078A
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US1236953A
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US1444647A
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US1565463A
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US2072364A
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US2188798A
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US2515455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |