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US3411158A
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Assignee: Airco Inc
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Filing: 1966-02-17
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Granted: 1968-11-19
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Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Charles E Benner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:33
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093620A
Cited
US2263116A
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US2921395A
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US2827722A
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US3056140A
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US3225357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |