US2833528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoke consumer
Assignee: Individual
•
Filing: 1955-11-22
•
Granted: 1958-05-06
•
Expires: 1975-11-22
Abstract
No abstract record available.
Inventors
- 👤 Otto A Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE107819C
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US517297A
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US581448A
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US824469A
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US2090994A
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US2345530A
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US2572199A
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US2721065A
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US2720386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |