US2022420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating lactic fluids
Assignee: SEALTEST SYSTEM LAB Inc
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Filing: 1935-07-19
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Granted: 1935-11-26
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Expires: 1955-07-19
Abstract
No abstract record available.
Inventors
- 👤 Bernard W Hammer
- 👤 Herman C Horneman
- 👤 Milton E Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:41
CPC Classifications
A; A23; A23C; A23C7/00; A23C7/04; A23B; A23B11/00; A23B11/30
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) | 1938-11-25 | 1939-05-27 | 1939-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-25 | 1943-05-27 | 1943-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-25 | 1947-05-27 | 1947-11-26 | $7700.00 | Window Closed / Lapsed |