US2555201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffuser tube
Assignee: Individual
•
Filing: 1947-02-26
•
Granted: 1951-05-29
•
Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 Carl H Nordell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23123; B01F23/23126; B01F23/231268; C12; C12M; C12M29/00; C12M29/06; B01F23/2311; B01F23/23114; B01F23/231142; B01F23/231143; B01F23/23116; B01F23/23125; B01F23/231265; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317463A
Cited
US713544A
Cited
US1473160A
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US1810394A
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US2063480A
Cited
GB431674A
Cited
US2328655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |