US2522005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Degasifier
Assignee: Automatic Pump and Softener Corp
•
Filing: 1946-11-15
•
Granted: 1950-09-12
•
Expires: 1966-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert A Whitlock
- 👤 James E Dymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:58
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US457917A
Cited
US1612218A
Cited
US1800217A
Cited
US1725925A
Cited
US1955321A
Cited
US2047157A
Cited
US1836338A
Cited
US1916922A
Cited
US2136774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |