US3477904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrazides of fatty quaternary ammonium salts of glycine as retention agents
Assignee: United States Department of Agriculture
•
Filing: 1966-09-30
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Granted: 1969-11-11
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Charles L Mehltretter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:07
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3113026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |