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Patent US2992798A successfully refreshed from Google Patents.
US2992798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Survival kits for flight personnel
Assignee: H Koch and Sons Co
•
Filing: 1957-07-08
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Granted: 1961-07-18
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Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 Joe B Smith
- 👤 John A Gaylord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:16
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB695255A
Cited
US2467037A
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US2114301A
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US2264321A
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US2366455A
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US2461785A
Cited
US2497772A
Cited
US2726832A
Cited
US2802252A
Cited
GB772729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |