Patent US3381062A successfully refreshed from Google Patents.
US3381062A
Expired / Lapsed
US
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Cyclic diphosphono-carboxylic amides
Assignee: BASF Schweiz AG
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Filing: 1967-05-11
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Granted: 1968-04-30
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Expires: 1987-05-11
Abstract
No abstract record available.
Inventors
- 👤 Sheik Abdul-Cader Zahir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:15
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/432; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657163; C07F9/657181; D06M13/00; D06M13/244; D06M13/282; D06M13/288
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
4 words
THE COMPOUND OF FORMULA:
Claim 2
Dependent Claim
4 words
THE COMPOUND OF FORMULA:
Claim 3
Dependent Claim
4 words
THE COMPOUND OF FORMULA:
Claim 4
Dependent Claim
4 words
THE COMPOUND OF FORMULA:
References Cited (Backward Citations)
US3141032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |