Patent AT173993B successfully refreshed from Google Patents.
US3428131A
Expired / Lapsed
US
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Method and apparatus for generating fire-fighting foam
Assignee: EW Bliss Co Inc
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Filing: 1966-08-16
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Granted: 1969-02-18
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Expires: 1986-08-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:35
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/0009; A62C99/0018; A62C99/0027; A62C3/00; A62C3/02; A62C3/0207; A62C5/00; A62C5/002; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US608377A
Cited
US1340517A
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US1586997A
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US1761179A
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US2177245A
Cited
US2396130A
Cited
US2494893A
Cited
US3186490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |