US3316331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
O-alkyl, o-phenyl or o-cresyl aminomethane phosphonic acids
Assignee: Rohm and Haas Co
•
Filing: 1963-06-18
•
Granted: 1967-04-25
•
Expires: 1983-06-18
Abstract
No abstract record available.
Inventors
- 👤 Homer J Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:48
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2608; C10M2223/00; C10M2223/06; C10M2223/063; C10M2223/065; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2570503A
Cited
US3000710A
Cited
US3033789A
Cited
US3051655A
Cited
US3076010A
Cited
US3007784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |