US2553567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1945-12-05
•
Granted: 1951-05-22
•
Expires: 1965-12-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Fette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:26
CPC Classifications
C; C12; C12C; C12C7/00; C12C7/14; C12C7/16; C12C7/165; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/23; B01D29/25; B01D29/50; B01D29/52; B01D29/54; B01D29/62; B01D29/64; B01D29/6469; B01D29/6476; B01D29/76; B01D29/80; B01D29/82; B01D29/828; C12C7/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US488583A
Cited
US644207A
Cited
US1137075A
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US1048853A
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US1772262A
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US1624385A
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GB385590A
Cited
US2407046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |