Patent USRE28895E successfully refreshed from Google Patents.
US3129014A
Expired / Lapsed
US
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Fuel cells and manufacture thereof
Assignee: Bridgestone Firestone Inc
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Filing: 1960-10-06
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Granted: 1964-04-14
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Expires: 1980-10-06
Abstract
No abstract record available.
Inventors
- 👤 Hutchison Cyril Paul
- 👤 John L Eberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:48
CPC Classifications
B; B32; B32B; B32B27/00; B60; B60K; B60K15/00; B60K15/03; B60K15/03177; B65; B65D; B65D11/00; Y; Y10; Y10S; Y10S220/00; Y10S220/905; Y10S428/00; Y10S428/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF BUILDING A FUEL CELL WHICH COMPRISES INFLATING A FORM TO PRODUCE A SURFACE COMPLEMENTARY TO THE SURFACE OF THE WALL OF THE FUEL CELL, APPLYING LIQUID POLYURETHANE PRECURSOR TO THE INFLATED SURFACE, AND HEATING TO SET IT WITHOUT COMPLETELY CURING IT, COVERING THIS WITH NYLON IN SOLUTION AND REMOVING THE SOLVENT, AND APPLYING THEREOVER ANOTHER PLY OF LIQUID POLYURETHANE PRECURSOR, AND THEREAFTER HEATING AND SIMULTANEOUSLY COMPLETING THE CURE OF BOTH PLIES OF POLYURETHANE PRECURSOR, AND THEN DEFLATING AND REMOVING THE FORM THROUGH AN OPENING IN THE CELL WALL.
Claim 2
Dependent Claim
121 words
A FUEL CELL WITH PLASTIC WALLS COMPOSED ESSENTIALLY OF POLYRETHANE CONTAINING A NYLON BARRIER, WHICH CELL IS ADAPTED TO BE LOCATED UNDER THE FENDER NEAR A WHEEL OF AN AUTOMOBILE, ONE END OF THE CELL WHICH IS ADAPTED TO BE NEAR THE WHEEL BEING CURVED SUBSTANTIALLY CONCENTRICALLY WITH THE WHEEL, AN OUTWARDLY EXTENDING SUBSTANTIALLY HORIZONTAL SHELF PORTION BETWEEN THE TOP AND BOTTOM OF THE CELL, WHICH SHELF PORTION EXTENDING THE LENGTH OF ONE SIDE WALL AND THE ENTIRE WIDTH OF THE OPPOSITE END OF THE CELL JOINS A LOWER PORTION OF THE CELL OF LESSER CROSS-SECTIONAL AREA WITH AN UPPER PORTION OF LARGER CROSS-SECTIONAL AREA AND IS ADAPTED TO REST ON A CELL SUPPORT LOCATED UNDER THE FENDER OF THE AUTOMOBILE.
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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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |