US2546259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas washer
Assignee: PETERS DALTON Inc
•
Filing: 1947-07-22
•
Granted: 1951-03-27
•
Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 Orrin E Fenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/022; B01D47/027; B05; B05B; B05B14/00; B05B14/40; B05B14/46; B08; B08B; B08B15/00; Y; Y10; Y10S; Y10S55/00; Y10S55/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2339982A
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US2373330A
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US2395960A
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US2403545A
Cited
US2429265A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |