Patent US2741177A successfully refreshed from Google Patents.
US2741177A
Expired / Lapsed
US
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Chemical bomb
Assignee: Individual
•
Filing: 1944-11-07
•
Granted: 1956-04-10
•
Expires: 1964-11-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold A Ricards
- 👤 George L Matheson
- 👤 Lyle M Cooper
- 👤 Jr William T Knox
- 👤 Francis R Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:03
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1326258A
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GB189918569A
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US1005578A
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US1276635A
Cited
GB121045A
Cited
US1484190A
Cited
FR616917A
Cited
FR711463A
Cited
US2119697A
Cited
US2247111A
Cited
US2217645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |