US2132099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for purifying dairy products
Assignee: Individual
•
Filing: 1934-08-23
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Granted: 1938-10-04
•
Expires: 1954-08-23
Abstract
No abstract record available.
Inventors
- 👤 Doering Charles
- 👤 Doering Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:57
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/20; A; A01; A01J; A01J11/00; A01J11/04; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/52; B01D29/54; B01D29/62; B01D29/70; B01D29/72; B01D35/02; B01D35/027; B01D35/0276; B01D2201/00; B01D2201/24; B01D37/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-10-03 | 1942-04-04 | 1942-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-03 | 1946-04-04 | 1946-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-03 | 1950-04-04 | 1950-10-04 | $7700.00 | Window Closed / Lapsed |