Patent US3354166A successfully refreshed from Google Patents.
US3354166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu-substituted ammonium salts of monoesterified phosphonic acids
Assignee: Monsanto Research Corp
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Filing: 1964-09-28
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Granted: 1967-11-21
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Albert Y Garner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:06
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C07F9/142; C07F9/145
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
14 words
PIPERIDINIUM ALKYL PHOSPHONATE WHEREIN THE ALKYL RADICAL HAS FROM 1 TO 8 CARBON ATOMS.
Claim 4
Dependent Claim
14 words
PIPERIDINIUM ALKYL PHOSPHONATE WHEREIN THE ALKYL RADICAL HAS FROM 1 TO 8 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |