US2697032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetylene gas producer
Assignee: Phillips Petroleum Co
•
Filing: 1951-07-30
•
Granted: 1954-12-14
•
Expires: 1971-07-30
Abstract
No abstract record available.
Inventors
- 👤 Edward L Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C01B3/363; C07; C07C; C07C2/00; C07C2/76; C07C2/78
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |