US2863729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination of hydrogen and oxygen
Assignee: Individual
•
Filing: 1953-02-27
•
Granted: 1958-12-09
•
Expires: 1973-02-27
Abstract
No abstract record available.
Inventors
- 👤 Harold F Mcduffie
- 👤 Charles H Secoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:10
CPC Classifications
C; C01; C01B; C01B5/00; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/903; Y10S204/904; Y10S204/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A METHOD OF COMBINING HYDROGEN WITH OXYGEN WHICH COMPRISES PROVIDING COPPER IONS IN AN AQUEOUS SOLUTION OF SAID HYDROGEN AND OXYGEN UNDER SUPERATMOSPHERIC PRESSURE AND AT A TEMPERATURE ABOVE APPROXIMATELY 150*C.
Claim 2
Independent Claim
31 words
A METHOD OF COMBINING HYDROGEN WITH OXYGEN WHICH COMPRISES PROVIDING COPPER IONS IN AN AQUEOUS SOLUTION OF SAID HYDROGEN AND OXYGEN UNDER SUPERATMOSPHERIC PRESSURE AND AT A TEMPERATURE ABOVE APPROXIMATELY 150*C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |