US3287174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of pressure build-up in electrochemical cells
Assignee: Individual
•
Filing: 1963-11-12
•
Granted: 1966-11-22
•
Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Hennigan
- 👤 Terrace Chillum
- 👤 Paul C Donnelly
- 👤 Jr Charles F Palandati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:35
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN A CLOSED CHAMBER HOUSING AN ELECTROCHEMICAL CELL WHICH PRODUCES A PRESSURE BUILD-UP IN SAID CHAMBER FROM HYDROGEN GAS EVOLVED AS A BY PRODUCT OF ITS ELECTROCHEMICAL REACTION, THE IMPROVEMENT COMPRISING: A PLASTIC HOLDER; POWDERED PALLADIUM OXIDE COATED ON SAID HOLDER; SAID PLASTIC HOLDER WITH SAID PALLADIUM OXIDE COATED THEREON POSITIONED IN SAID CLOSED CHAMBER, WHEREBY SAID HYDROGEN GAS REACTS WITH SAID PALLADIUM IN THE FOLLOWING MANNER:
Claim 2
Dependent Claim
67 words
IN A CLOSED CHAMBER HOUSING AN ELECTROCHEMICAL CELL WHICH PRODUCES A PRESSURE BUILD-UP IN SAID CHAMBER FROM HYDROGEN GAS EVOLVED AS A BY PRODUCT OF ITS ELECTROCHEMICAL REACTION, THE IMPROVEMENT COMPRISING: A PLASTIC HOLDER; POWDERED PALLADIUM OXIDE COATED ON SAID HOLDER; SAID PLASTIC HOLDER WITH SAID PALLADIUM OXIDE COATED THEREON POSITIONED IN SAID CLOSED CHAMBER, WHEREBY SAID HYDROGEN GAS REACTS WITH SAID PALLADIUM IN THE FOLLOWING MANNER:
References Cited (Backward Citations)
US2615062A
Cited
US2687449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |