Patent US4039897A successfully refreshed from Google Patents.
US2804633A
Expired / Lapsed
US
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Inflatable life raft comprising improved canopy and supporting means therefor
Assignee: Garrett Corp
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Filing: 1954-07-15
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Granted: 1957-09-03
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Expires: 1974-07-15
Abstract
No abstract record available.
Inventors
- 👤 Myron L Taylor
- 👤 Robert J Fraebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:34
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/02; B63C9/04; B63C2009/042; B63C2009/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |