Patent US3012124A successfully refreshed from Google Patents.
US3012124A
Expired / Lapsed
US
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Smoke generator
Assignee: DRYING SYSTEMS Co
•
Filing: 1958-09-23
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Granted: 1961-12-05
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Expires: 1978-09-23
Abstract
No abstract record available.
Inventors
- 👤 Weissman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:59
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/044; A23B4/052; A23B4/0523; Y; Y02; Y02A; Y02A40/00; Y02A40/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732837A
Cited
US1468379A
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US2265857A
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US2398446A
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US2606546A
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US2667157A
Cited
US2677038A
Cited
US2721729A
Cited
US2843106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |