US2990165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for generating foam for use in fire fighting
Assignee: JAMES WHITSON AND Co Ltd
•
Filing: 1958-03-28
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Granted: 1961-06-27
•
Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph Alphonse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:57
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/311; B01F25/3111; B01F25/31112; Y; Y10; Y10S; Y10S261/00; Y10S261/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1225053A
Cited
DE673980C
Cited
US2138133A
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US2218294A
Cited
US2386464A
Cited
US2597913A
Cited
GB785376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |