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US2902269A
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Diffuser type vaporizer
Assignee: Chemetron Corp
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Filing: 1956-09-10
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Granted: 1959-09-01
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Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 Francis J Eichelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:20
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/14; A61M16/16; Y; Y10; Y10S; Y10S261/00; Y10S261/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1971288A
Cited
US1969644A
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US2080940A
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US2378029A
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US2415048A
Cited
US2687287A
Cited
US2668699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |