US3248317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination of hydrogen producing and hydrogen consuming units
Assignee: Universal Oil Products Co
•
Filing: 1965-03-31
•
Granted: 1966-04-26
•
Expires: 1985-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jack B Pohlenz
- 👤 Donald H Belden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:52
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C10G49/00; C10G49/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3008895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |