Patent US3137705A successfully refreshed from Google Patents.
US3137705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxylamino compounds
Assignee: BASF Corp
•
Filing: 1961-03-07
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Granted: 1964-06-16
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Prelog Vladimir
- 👤 Vischer Ernst
- 👤 Bickel Hans
- 👤 Fechtig Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:49
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-(5-HYDROXYLAMINO-PENTYL)-PHTHALIMIDE AND ACID ADDITION SALTS THEREOF WITH NON-TOXIC ACIDS.
Claim 2
Dependent Claim
17 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF N-(5-HYDROXYLAMINO-PENTYL)-PHTHALIMIDE AND ACID ADDITION SALTS THEREOF WITH NON-TOXIC ACIDS.
Claim 3
Dependent Claim
10 words
AN ACID ADDITION SALT OF 5-HYDROXYLAMINO-PENTYLAMINO-(1) WITH A NON-TOXIC ACID.
Claim 4
Dependent Claim
10 words
AN ACID ADDITION SALT OF 5-HYDROXYLAMINO-PENTYLAMINO-(1) WITH A NON-TOXIC ACID.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |