US3410770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic method for producing oxygen and hydrogen
Assignee: Allis Chalmers Corp
•
Filing: 1966-02-18
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Granted: 1968-11-12
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Lester W Buechler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:51
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/02; C25B1/04; C25B9/00; C25B9/17; C25B9/19; C25B9/70; C25B9/73; C25B9/75; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3313718A
Cited
US1588214A
Cited
US3017338A
Cited
US3316163A
Cited
US3057794A
Cited
FR1386878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |