US2417670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous disc type gas mixer
Assignee: Union Carbide Corp
•
Filing: 1944-01-07
•
Granted: 1947-03-18
•
Expires: 1964-01-07
Abstract
No abstract record available.
Inventors
- 👤 Clifford C Anthes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:16
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/72; F23D14/82; B; B01; B01F; B01F25/00; B01F25/40; B01F25/45; B01F25/452; B01F25/4522; B01F25/45221; F23D14/38; F23D14/42; F23D14/62; Y; Y10; Y10S; Y10S266/00; Y10S266/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE262881C
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USRE16149E
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US713421A
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US1097264A
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US1223308A
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FR477958A
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US1290878A
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US2008130A
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US2242471A
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US2235433A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-17 | 1950-09-16 | 1951-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-17 | 1954-09-16 | 1955-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-17 | 1958-09-16 | 1959-03-18 | $7700.00 | Window Closed / Lapsed |