Patent US2397663A successfully refreshed from Google Patents.
Patent US2535410A successfully refreshed from Google Patents.
US2535410A
Expired / Lapsed
US
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Gaseous fluid vaporizer and mixing device
Assignee: Individual
•
Filing: 1947-08-28
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Granted: 1950-12-26
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Expires: 1967-08-28
Abstract
No abstract record available.
Inventors
- 👤 Steve P Grevas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:32
CPC Classifications
F; F02; F02M; F02M1/00; F02M21/00; F02M2700/00; F02M2700/13; F02M2700/1305; F02M2700/43; F02M2700/4302; F02M2700/4373; F02M2700/4376
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1061655A
Cited
US1139912A
Cited
US1401609A
Cited
US1949803A
Cited
US2064251A
Cited
US2101477A
Cited
US2146246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |