US2764455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizing and mixing unit
Assignee: Individual
•
Filing: 1953-11-23
•
Granted: 1956-09-25
•
Expires: 1973-11-23
Abstract
No abstract record available.
Inventors
- 👤 Alfred F Seibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:27
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1451063A
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US1522951A
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US1647956A
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US1999121A
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US2239025A
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US2303104A
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US2368373A
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US2672727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |