US3515593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell with electrically conductive bonding means
Assignee: RTX Corp
•
Filing: 1968-02-19
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Granted: 1970-06-02
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Expires: 1988-02-19
Abstract
No abstract record available.
Inventors
- 👤 Richard C Nickols Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:13
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/02; H01M8/0271; H01M8/24; H01M8/241; H01M8/242; H01M8/04; H01M8/04007; H01M8/04029; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |