Patent US2779702A successfully refreshed from Google Patents.
US2779702A
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Fuel cell supporting panel
Assignee: Bridgestone Firestone Inc
•
Filing: 1953-07-01
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Granted: 1957-01-29
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Expires: 1973-07-01
Abstract
No abstract record available.
Inventors
- 👤 Wilson Robert Foster
- 👤 Mattson Virgil James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:45
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/06; Y; Y10; Y10S; Y10S220/00; Y10S220/90; Y10S428/00; Y10S428/912
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
107 words
A SELF-SUPPORTING, SELF-SEALING NON-METALLIC TYPE AIRCRAFT FUEL CELL COMPRISING A PLURALITY OF LAMINAER BUILT UP INTO A FUEL-CONTAINING ENCLOSURE; SAID LAMINAE INCLUDING AN ELOSTOMERIC FUEL RESISTANT LAMINA ON THE INTERIOR OF THE ENCLOSURE AND, DISPOSED EXTERNALLY OF THE FUEL RESISTANT LAMINA, AN ELOSTOMERIC FUEL-SWELLABLE SEALANT LAMINA AND A STIFFENING PLY COMPRISING A GLASS FILAMENT FABRIC IMPREGNATED WITH A HARD RESIN, SAID GLASS FILAMENT FABRIC BEING WOVEN WITH A THREAD COUNT OF 1 TO 10 THREADS PER INCH IN EACH DIRECTION, FROM FLATTENED, TWIST-FREE BUNDLES OF GLASS FILAMENTS, SAID FILAMENTS HAVING A FILAMENT DIAMETER OF .0002-.0010 INCH, AND SAID BUNDLES HAVING A YARDAGE OF 100-500 YARDS PER POUND.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |