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US2819050A
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Assignee: KGI Inc
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Filing: 1955-05-11
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Granted: 1958-01-07
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Expires: 1975-05-11
Abstract
No abstract record available.
Inventors
- 👤 Huggins Clifford Andrew
- 👤 Griffin C Thrift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:10
CPC Classifications
F; F16; F16K; F16K15/00; B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/163; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1047807A
Cited
FR619029A
Cited
US2016390A
Cited
US2428889A
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US2622615A
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US2649277A
Cited
US2718900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |