US2579401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas treating apparatus and method
Assignee: Schneible Co
•
Filing: 1948-03-17
•
Granted: 1951-12-18
•
Expires: 1968-03-17
Abstract
No abstract record available.
Inventors
- 👤 Claude B Schneible
- 👤 Alvin S Lundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:30
CPC Classifications
F; F23; F23B; F23B5/00; F23B2700/00; F23B2700/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1254725A
Cited
US1577509A
Cited
US1502844A
Cited
US2074317A
Cited
US2257516A
Cited
US2438606A
Cited
US2467505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |